The movie theater charges different rates for attendees depending on their age; kids 12 and under are $4, adults are $6, and seniors citizens are $5. a group of 19 people from a family decides to go to a movie one weekend. there are equal number of kids and seniors citizens. the total cost is $90. write a linear equation to find the number of people in each category.

Valentino starts with a population of 1,500 amoebas that increases 35% in size every hour for a number of hours, h. the expression 1,500(1+0.35)h finds the number of amoebas after h hours. which statement about this expression is true? a. it is the initial population raised to the growth factor after h hours. b. it is the sum of the initial population and the percent increase. c. it is the sum of the initial population and the growth factor after h hours. d. it is the product of the initial population and the growth factor after h hours.

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?