Kay sees a jacket in New York costing $170 She knows the same jacket costs £132 in London.
Using the exchange rate £1 = $1.30, work out in which place the jacket is cheaper
and by how much

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

Find the domain of the following expression: 1/(√x)-2

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?