What is the answer to the problem? 7 1/2 ÷ 3/4 I need this fast please help!! :)

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

A6 ounce bottle of dressing costs $1.56 a 14 ounce bottle costs $3.36 a 20 ounce bottle costs $5.60 which has the lowest cost per ounce