A dolphin ia at the surface of the water and then sescends to a depth of 4.5 feet. Then the dolphin swims down another 2.75 feet. What is the location of the dolphin relative to the surface of the water?

-7.25

Step-by-step explanation:

because the dolphin is going down, its negative so you add -4.5+-2.75

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt