Question

pleassdee need help I'll brainlist ​

Answer 1

Answer:

A^2 means a*a

Step-by-step explanation:

A^2 = 5^2=5*5=25

3a^2=3*5^2=3*25=75

A^2+7=5^2+7=25+7=32

Answer 2

A) a^2 means a*a

B) substitute 5 for a on i, ii, and iii problems