Question

pls only write only if u know all the answers

Answer 1

Answer: simple

Step-by-step explanation:

A=7^-2

B=49+25+16=90

12=2^-1

13=0.4and 0.45

14=89×89=7921

15=4.63×10^5

Mark me as brilliantist

Answer 2

Answer:

all answers are given there itself...