She received 12 calls from her son and 30 calls in total.
40% of 30 is 12.
84 I'm sure it's that I did it before
Step-by-step explanation:
By Law of Indices,
8^(-2) = 8^0 / 8^2
= 1 / 64.
Answer:
The answer is a. both open upward; h is wider than f
Hello!

(7x²y³)(3x⁵y⁸)
Multiply by ADDING exponents with the same base:
(7 * 3) (x² * x⁵) (y³ * y⁸)
21 * x² ⁺ ⁵ * y³ ⁺ ⁸
Simplify:
21 * x⁷ * y¹¹
21x⁷y¹¹