The last time Robert filled up his car with gas, he paid $24.50 for 7 gallons. If the price stays the same, how much will he pay for 15 gallons of gas?

Don't know how to find x given these segment lengths

What is the area of a triangle with a base of 7x and height of 8x expressed as a monomial? question 5 options: 1x 15x2 28x2 56x2

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.