When vanessa's 3ds is fully charged it lasts for four hours. if she only charged it three-quarters full, how long would it last?

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12