PLZ HELP WONT TAKE LONG THX X These questions relate to this information:
Express Transport Company ordered 20 minibuses (brand new and second-hand) that cost $106,000. The unit cost was $8,000 for the brand new minibuses and $3,500 for the second-hand bus.

How many units of each were ordered?

What was the dollar cost of the second-hand minibuses?

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?