Trevor tutors french for $12 an hour and scoops ice cream for $8 an hour. he is going to work 20 hours this week. at least how many hours does he need to tutor to make more than $190? let x equal the number of hours he tutors and y be the number of hours he scoops ice cream.

at least how many hours does trevor need to tutor to make more than $190? express your answer as a decimal number.

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers