(13x)/10 - 20/100 * (13x)/10

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?