Last week, chen bought 8 1/2 gallons of gas at $2.30 per gallon. this week, he bought 4 3/10 gallons of gas at $2.70 per gallon. what was his total cost? enter your answer in the box.

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4