Christina bought 8 frozen dinners and 8 pints of ice cream. Each dinner cost $5.12 and each ice cream pint cost $3.25. If Christina paid for the food with a $100 bill, how much change did she receive from the cashier?

In the surface area formula for cylinders which expressionrepresents the lateral area

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?