Question

1.
Evaluate the expression rt if r =4 and t=7.
2. Solve the equation. Explain the steps. 5n + 2 = 2n -9

Answer 1

help now

Answer 2

1.
Substitute r and t: (4)(7)=28

2.
5n+2=2n-9
First, move the numbers to one side: 5n=2n-7
Then, move the variables to the other side: 3n=-7
After that, divide both sides by 3: n=-7/3

Answer 3

thank you

Answer 4

your welcome