2) If 20 workers can build a house in 45 days, how many more workers are needed to complete it in 30 days?
А
6
B
15
С
10
D
18

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Find the measure for the angle indicated in bold

Francis is getting new carpet tiles in his living room and den. his living room and den are connected. he needs to figure out how much carpet he needs and the cost involved. if each tile costs $2.00 per sq ft, how much would it cost to have new tile put in the den? a) $24 b) $36 c) $48 d) $54 plz awnser soon