Answer:
418.69 usd
Step-by-step explanation:
Multiply by 2 which will get you a diameter and then multiply it by pi which is 3.14.
Answer:
4
Step-by-step explanation:

Answer:
(-4,9)
Step-by-step explanation:
substitute the given value for y into the first equation
x-5(-2x+1)=-49
distribute
x+10x-5=-49
add like terms
11x-5=-49
add 5 to both sides
11x=-44
divide both sides by 11
x=-4
now plug x into into the second equation
y=-2(-4)+1
y=8+1
add like terms
y=9