10(90)-45(76)+34= whats the answer, no calculator

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?