Serena take 4 hours to set up the reception hall for an event. Caitlyn takes 5 hours to do the same job. How long will it take to set up the
reception hall if both of them work together? (round to the nearest
1/10):
It will take them [hours) hours working together.
Use formula: 1/A + 1/B= 1/T

a) 32pie square meters

step-by-step explanation:

40% off the regular price is the correct answer.

step-by-step explanation:

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98