Answer: if im not wrong it would be 1583/1000
Step-by-step explanation:
Answer is B: 150
write two equations
r+s=190
4r+3s=720
solve by substitution
the get r=150 s=40
Y=6 In this equation you also use combine like terms .
Answer: ? = 72
Step-by-step explanation:
We will set up a proportion to solve.

Now, we will cross-multiply.
? * 35 = 56 * 45
35? = 2,520
? = 72