A book was on sale for 40% off its original price. If the sale price of the book was $18.00, what was the
original price of the book? (Assume there is no sales
tax.)
A)$7.20
B) $10.80
C) $30.00
D) $45.00

c

Step-by-step explanation:

if it is on sale for 40 percent off, then it would be 60 percent of the original price. 18/6=3. 3*4=12. 3*6=18. 12 + 18 = 30

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.