A store has a sale with 15 % off every item. When you enter the store, you receive a coupon that states you receive an additional 4% off any discounted price. If you
purchase an item that sells for $400, what will your total discount be (a) in dollar amount
and (b) in percent?

you would need to know all the numbers that are on there

step-by-step explanation:

47 - 90 = 43

43 - 180 = x

x = 137

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.

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.