Jan takes her cat to the vet. She has pet insurance to pay part of the bill.
The vet charges
• £155.71 for treatment
• £73.38 for medicine
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Jan has to pay the first £70 plus 20% of the rest.
How much does Jan have to pay the vet?

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?