Michaela purchases a box of cereal for $3.95, chicken for $5.99, orange juice for $2.10, and a loaf of bread for $1.05. she has $15 with her. about how much change should she expect to receive?

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint