Arnold buys 3
3
5
pounds of green grapes for $1.85 per pound. He buys 3
3
5
pounds of red grapes for $2.30 per pound. Which expression can be used to determine the total cost, in dollars, of the grapes Arnold buys?

A) 3.6(1.85 + 2.30)
B) 3.6 • 1.85 • 2.30
C) (3.6 + 3.6)(1.85 + 2.30)
D) (3.6 • 3.6) + (1.85 • 2.30)

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca