11. Rewrite each expression using the properties of exponents so that the variable appears only once. a. () ()@ b. d. 3(2u)* C.
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
![Review
11. Rewrite each expression using the properties of exponents so that the variable appears only
once.
a. (P) () @
d. 3(2u)*
b.
C.
12. Draw a rectangle diagram to represent each product. Use the diagrams to expand each
product.
a. (3x+ 1)(x+5)
b. (x+3)
c. (x+ y)(2x +7)
13. APPLICATION Iwanda sells African bead necklaces
through a consignment shop. At the end of May, the
shop paid her $100 from the sale of 8 necklaces. At
the end of June, she was paid $187.50 from the sale of
15 necklaces. Assume that the consignment shop pays
Iwanda the same amount of money for each necklace
sold.
a. Write a direct variation equation for the amount
Iwanda is paid in terms of the number of necklaces
sold.
b. If the shop sells only 6 of her necklaces in July, how
much money will Iwanda get?
c. If the materials for each necklace cost $8, how much
profit did Iwanda make each month?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1df4618f-ccc7-46cd-a167-100acf03f342%2F0191d0b0-c970-4098-85f0-6d9adab050ff%2Fs66flrj_processed.jpeg&w=3840&q=75)
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