D, 8880 is divisible by both ten and 5.
78! is the answer to this question! trust! -6
30% is 24
45% is 36
take 15% and multiply it by however much it takes to make the percentage than multiply that by 12
Rate for Sally is 1 room per 8hrs
rate for Steve is 1 room per 7hrs
combined rate:
1/8 + 1/7 = 1/T
7/56 + 8/56 = 1/T
15/56 = 1/T
56/15 = T
3 11/15 = 3 hrs 44 min
Im not giving out direct answers cause math is my weak point but to find the volume multiply the width with the length and with the height all together to find it.<span />