4. duane and roberto joined a rock-a-thon
to raise money for the local animal
shelter. duane rocked for 10-hours and
roberto rocked for 13-hours. how much
longer did roberto rock than duane?

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost