270/15 = 135/ 7.5
cross multiply to see if it is a true proportion
(15)(135) = (270)(7.5)
2025 = 2025 (correct...so this is a true proportion)
answer is : bottom right one
The domain is hope this helped:)
Solve the multiplication first then the division and the subtract them to get something like this:

which simplifies to 29.7 (3 significant figure )
Answer:
Step-by-step explanation:
3y + 1 - 2y = -3 -3y
4y = -4
y = -1
Answer:
1. 2.5 steps per second
2. 1.25 steps
Step-by-step explanation: