Estimate how much higher than his best jump Kevin would have to hump to tie the record. Explain how you made your estimate.

23 can round to 20 and 21 can also round to 20 so all u do is 20x20=400 so 400 is your estimated answer

Step-by-step explanation:

is means division by fractions

step-by-step explanation:

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