Select the number line that shows that two opposite numbers have a sum of 0.

Help please!!

D

Step-by-step explanation:

-3 and 3 are opposite numbers, if you add together they equal 0

The answer is D because opposite numbers is positive and negative of a number. And the only one that shows that is D with it showing 3 to -3.

the answer is c)8

step-by-step explanaction:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!