The ice-cream truck had 112 ice-cream bars when it went out on its afternoon route. the driver sold 76 ice cream bars at the first stop. at the next stop, the smith family and the allen family bought the remaining ice-cream bars, divided equally between the two families. each ice-cream bar cost $1.50. how much did the smith family pay for their ice-cream bars?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?