Adolphin calf swims at a depth of -9/5 feet below surface. an adult dolphin swims at a depth of 7/4 times the depth at which the calf swims. what is the depth , in feet, of the adult dolphin from the sea surface? pls i really need : )

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer