John multiplied 400,000 by 7,800 on his calculator. He got the result shown on his calculator display. What is this number in standard form?

answer

a the answer hopes this

step-by-step explanation:

it would be 6xy and -16xy.

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