3. your school has been running a nickel drive to raise money for a sister school
in africa. a nickel weighs approximately 5 g. a roll of nickels is worth $2.00.
you have collected a total of $135.65 in nickels.
a. how much will your nickels weigh?
b. what is the weight of a roll of nickels?
c. how many rolls would you need to make 1 kg?

Carmen begins her next painting on a rectangular canvas that is 82.7 cm long and has a area of 8,137.68 cm2. will the painting fit in a frame with an opening that is 82.7 cm long and 95 cm wide? explain

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?