I) 4^n * 2^-18 = 1 What is the value of n?

ii) (3/2) ^2 * 25 = 3^n
What is the value of n?​

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.