Solve the equation. Be sure to check your solutions against the restricted values.
1 point
1
Question 6
6.
Solve the equation. Be sure to check your solutions against the restricted values.
1 point
1
Question 7
7.
Subtract. Do not include the restrictions.
1 point
1
Question 8
8.
Erin can paint a room in 5 hours. Her friend can paint a room in 7 hours. If they work together, how long will it take them to paint a room? Round to the nearest whole.
1 point
1
Question 9
9.
Robert and his friend are making 20 posters for the basketball game. Robert can make 1 poster every 12 minutes, and his friend can make 1 poster every 9 minutes. How long will it take them to make all 20 posters if they work together? Round to the nearest whole.