Question

Mr. Donahue needs 4 1/2 pounds of flour to make 5 loaves of bread. He bought a 50-pound bag of flour that costs $64.99. About how much will Mr. Donahue spend on flour for a loaf of bread?
A
$1.17

B
$5.85

C
$6.50

D
$58.49
how is this answer A

Answer 1

so cost is 1/5*4.5/50*64.99=1.17

Answer 2

Mr. Richards has two cars that he changes the oil in every four months.

During an oil change, each car needs 4 1/2 quarts of oil.
Each 5-quart container of oil costs $14.99.
Before tax, how much will the oil cost Mr. Richards for both cars in a year?
A
$44.97

B
$80.94

C
$89.94

D
$107.93
why is this c