Mrs. Williams combined 10 3/4 cups of peat moss, 5 1/2 cups of compost, and 2.75 cups of organic fertilizer make plant food for her roses. She evenly distributed the plant food among 4 rose bushes. How many cups of plant food were used for each rose bush?

4.75 cups of food.

Step-by-step explanation:

convert the mixed numbers to decimals. 10 3/4 is 10.75, 5 1/2 is 5.5. add them together 10.75 + 5.5 + 2.75 = 19. 19 / 4 = 4.75

#17 Complementary

#18 Neither

Step-by-step explanation:

Complementary Angle: If sum of two angles is right angle then both angles are complementary to each other.

Supplementary Angle: If sum of two angles is straight angle then both angles are supplementary to each other.

#17 In figure 1

∠1 + ∠2 = 90°

Sum of ∠1 and ∠2 is 90° which is right angle.

Therefore, ∠1 and ∠2  are complementary angles.

#18 In figure 1

Sum of ∠1 and ∠2 neither 90° not 180°

Therefore, ∠1 and ∠2  neither complementary angles nor supplementary angles.