Help! me pls

The area of the composite figure is 240.

Step-by-step explanation: For the area of the rectangle, multiply the length and width. That's 20 x 10, which is 200. Now we have to find the area of the triangle. That's length x height x 1/2. 20 x 4 is 80, and then half of that is 40. Add 200 and 40 to get 240.

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8