Which equation below is a true statement about ΔABC?

Hello people, i have a math question that i need with, me, i will give the correct one brainiest, and for the other correct people, a and 5 stars.

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

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?