Mark’s age twenty years ago if she will be N years old at 10 years from now? a. 20 - N b. 30 - N c. N - 20 d. N - 30

Q: 12 I+(-1'] = i=1

A:

Q: If an = 3n, what is a10? A. 3 B. 10 C. 20 D. 30

A: Given an=3n

Q: A=a+d(n-1) when A=25, a=4 and d=18

A: Substitute 25 for A , 4 for a and 18 for d in A=a+d(n-1).

Q: The sum of the first n consecutive even numbers can be found using S = n2 + n, where n > 2. what is…

A: By equating S= 42 we can find the value of n

Q: 18 A D. 5x-7

A: Given ,  We have to find value of x

Q: 4. Find the 2"

A: Given problem is :

Q: 10+c=25

A: given 10+c=25 find c by solving linear equation apply transpose for c and constant value one side…

Q: Find BA. A= BA= ☐ 3 2 || 7 B -6-3 3 0

A:

Q: The question is raised to 4 not 3/4.

A: the integral test is

Q: х -0.4 -1.5 -0.2

A:

Q: Find the length of H H. 33° 17° 35-

A: The given problem is solved below in detail.

Q: Aidan is four times as old as Aishi. Twenty years from now, Aidan will be twice as old as Aishi.…

A: In this question we have to find the difference of their present age.

Q: a = m - n for the variable n

A: We add n to both sides   a+n=m-n+n or, a+n=m

Q: V-27

A: Using , cube of a numbers