72 is equal to 80% of a number n write and solve an equation to find n write the percent as a decimal.

According to question

Change percentage to decimal by dividing it by 100

Now, crossmultiply we get,

Now sloving we get

answer: 1 + 1 = 11

step-by-step explanation:

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.