Answer:
r=9/2 or 4.5
Step-by-step explanation:
First of all our goal is to get R by itself
by cross multiplying we get,
(r+3)*3=5r
by distributive property we get
3r+9=5r
substracting 3r from both sides we get
9=2r
by dividing by 2 in both sides we get
r=9/2 or 4.5
400,7,000 i think im not quit sure i dont know
Answer:
15x+55y+20
Step-by-step explanation:
mark me brainlest
Answer:
4
n
4
√
3
n
Step-by-step explanation:
