60% of what number is 21 find the whole

Solve 3x2-2x-8=0 using an algebraic method

Four less than three times a number is greater than two times a number minus one.

Find an integer, x, such that 5, 10, and x represent the lengths of the sides of an obtuse triangle. is it A. 4, B. 5, C. 6 or D. 11?

Let e and f be the events that a family of n children has children of both sexes and has at most one boy, respectively. are e and f independent if a. n = 2? b. n = 4? c. n = 5?

How many like terms are in the expression? 14 x minus 14 y + 7 minus x + z + 2 x 0 2 3 5

A grocery store sells three different quantities of sugar. A 1 pound bag cost $1.10, a 2pound bag cost $1.98, and a three pound bag is $2.85. Describe how the unit cost changes as the quantity of sugar increases.

Alana spent 0.35 of a dollar on a ring at the arcade and 0.72 of a dollar on a snack. Did Alana spend more on the ring or the snack

Raven wants to plant 35 marigold plants, 20 zinnia plants and 15 daylily plants in her flower garden. If she puts the same number of plants in each row and if each row has only one type of plant, what is the greatest number of plants she can put in

In a group of 100 adults, 75 percent of the women are left-handed. if there are 12 right-handed women in the group, how many men are in the group?

recipe calls for 2 2/4 cups of raisins but Julie only has one cup 1/4 cup measuring cup how many 1/4 cup does truly need to measure out 2 2/4 cups of raisins