1. Which of the following represents an exponential function? (1) y = 3x - 7 (3) y=3(7) (2) y = 7x? (4) y = 3x2 +7

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?