just eyeballing it I know that 4 + 9 = 13 so lets assume x = y = 2. Now to solve the second equation to see if my hunch is right

2^(2+2) + 3^(2+1) = 43

2^4 + 3^3 = 43

16 + 27 = 43

43 = 43

turns out was right lol so 2^x = 2^2 = 4

Answer: 4

this problem looks confusing...

simplified: 2 - 6x - 8x^2 = -8x^2 -6x + 2

A = -8

B = -6

C = 2

A + B + C = -12

f = number of stamps Fann has

a = number of stamps Alex has

f = 2 3/5 * a

f:a = 2 3/5 : 1

ratio is 1: 2 3/5 or 1: 13/5

Natalie took 1/4 of a day so 24*1/4 = 6 hours

Kevin took 2/3 the time Natalie took so 6*2/3 = 4 hours

6 - 4 = 2

Kevin did his homework 2 hours faster than Natalie

don't rly wanna explain why im doing what im doing cus the diagram I made to solve this is kinda weird

20^2 * pi = 400pi

3/4 (400pi) = 300pi

10^2 * pi = 100pi

100pi/2 = 50pi

300pi + 50pi = 350pi

answer is 350pi

d = common difference

x+3+d = 3x-10

d = 2x-13

3x-10+d = 2x+12

d = -x + 22

2x-13 = -x+22

3x = 35

x = 35/3

Checking answer:

35/3 + 9/3 = 44/3

35-10 = 25 = 75/3

70/3 + 12 = 70/3 + 36/3 = 106/3

106/3 - 75/3 = 31/3

75/3 - 44/3 = 31/3

M = Mother's age 8 years ago

B = brother's age 8 years ago

M = 4B + 4

M+8 = 3(B+8) - 5 -> M+8 = 3B+24-5 -> M = 3B + 11

4B + 4 = 3B + 11

B = 7

B+8 = 15

Answer: 18

pretty sure thats the answer lol if not then I messed up somewhere

1/3 - 1/4 = 1/12 so 1/12 of Lemmie's toys is 18, so to get half of Lemmie's toys we need to find how much 6/12 of Lemmie's toys is so 18*6 = 108