The answer is d=-7 because i did the math
Step-by-step explanation:
Solve by Subsitution

Replace this into the second equation


Write in standard form

Use the quadratic formula, and our answer will be
(6.97,43.02)
(43.02,6.97)
Answer:
22
Step-by-step explanation:
Given
2t + 4s ( substitute t = 5, s = 3 into the expression )
= 2(5) + 4(3)
= 10 + 12
= 22