Please help
Solve a/16 + 8 = 12.

a =

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.

Student representatives surveyed their classmates on their preference of a school mascot for a new school. the results are shown in the table below. which pair of samples seems most representative of student preference?

How many times larger is 9 × 10^8 than 3 × 10^-5? a. 3 × 10^13 b. 3 × 10^-40 c. 3 × 10^-13 d. 3 × 10^3