Jack is a plumber and uses the below formula to calculate how much he charges the customer. Cost = Number of hours x 4 + Standard Charge

How much does he charge a customer when he worked 5 hours and his standard charge is £22.

Cost = 42 pounds

Step-by-step explanation:

Cost = 5 x 4 + 22

Cost = 42 pounds

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.