Select all the true statements. 1 - Three dimensional (3D) composite shapes are made of two or more shapes put together.

2 - To calculate the surface area of a 3D composite shape, find the outside surface area of each shape and then add the surface areas together.

3 - Surface area is the amount of space, measured in cubic units, that an object or substance occupies

4 - Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape.

The graph shows the prices of different numbers of bushels of corn at a store in the current year. the table shows the prices of different numbers of bushels of corn at the same store in the previous year. previous year number of bushels price of corn (dollars) 2 10 4 20 6 30 8 40 part a: describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. part b: how many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? show your work.

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Simplify. 3(4+4x) (type your answer in with no spaces)