Answer:

General Formulas and Concepts:
<u>Pre-Alg</u>
Step-by-step explanation:
<u>Step 1: Define equation</u>
rt - 2n = y
<u>Step 2: Solve for </u><em><u>t</u></em>
- Add 2n to both sides: rt = y + 2n
- Divide both sides by r: t = (y + 2n)/r
A = 1/2[(7)(19) + (12)(19)]
A = 1/2[133 + 228]
A = 361/2
A = 180.5
answer
D. 180.5 square inches
Answer:
9, -4, 3b, and 7a
Step-by-step explanation:
Answer:
Alejandro will pay $85.14
Step-by-step explanation:
79.95 x 0.065 = 5.19
79.95 + 5.19 = $85.15
Answer:D
Step-by-step explanation: