Should the mole be considered a base

An on-line poll found that 35% of all married couples do not buy each other birthday gifts. Based on this information, what is the probability that for a random sample of 10 married couples, 4 do not buy each other birthday gifts?

Shana bought sodas and popcorn for the movies. Sodas cost $3 each and popcorn cost $4 per bag. Shana bought 7 things from the concession, all either sodas or bags of popcorn. Shana spent a total of $26.

Simplify the expression. |-5 - 8| -12 -13 12 13

How do you do improper fractions

what syllogism means

Mary only has $28.50 in her wallet. For which of the following does she have enough money. $40 shirt with a 20% discount, $26 dinner with a 6.5% tax, or 10% markdown on a $32 game

Gina bought 2.5 pounds of peaches that cost $1.38 per pound at the grocery store. amy went to the local farmer's market and purchased 3.5 pounds of peaches at $0.98 per pound. who spent more money, and how much more

1447.00+0.03what is the total

What is the surface area of a rectangular prism that has a height of 5 cm, a width of 10 cm, and a depth of 4 cm? [Not drawn to scale] 120 square centimeters 180 square centimeters 220 square centimeters 270 square cemtimeters

The revenue, in dollars, of a company that produces jeans can be modeled by 2x2+17x-175. The cost, in dollars, of producing the jeans can be modeled by 2x2-3x-125. The number of pairs of jeans that have been sold is represented by x.