Addition property of
equality
1. 19 = 5x - 1
division property of
equality
2. 20 = 52
3. 4 = x
given

Step-by-step explanation:

Isolate x on one side of the equation.

19=5x-1

5x-1=19 (First, switch sides.)

5x-1+1=19+1 (Add 1 from both sides.)

19+1 (Solve.)

19+1=20

5x=20

5x/5=20/5 (Then, divide by 5 from both sides.)

20/5 (Solve.)

20/5=4

x=4

Therefore, the final answer is x=4.

use formula for the circle a=3.14

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