I think the answer is 54 because negative times a negative number equals positive and 9x5 is 45 + another negative times negative so 3x3 is 9 so add 45+9 which is 54.
2 x - 3² + - 3
2 x 9 + - 3
18 - 3
15
A=pR^2-2pr^2, since R=15 and r=7.5
A=225p-112.5p
A=112.5p
A≈353.25 ft^2
Answer:
2220
Step-by-step explanation:
you subtract 2333-73=2260
then subtract 2260-40=2220
