This is 15 points plz help ( NO LINKS ) ( ONLY ANSWER THIS IF YOU HAVE AN EXPLANATION AND IF YOU KNOW WHAT THE ANSWER IS)

( the answer is not 1,920 because i got it wrong when i typed the answer in )

Try 6,400

Step-by-step explanation:

Find the volume of one congruent bookshelf then you'd be doing "4 x 10 x 8  x 10" (not another 8 bc they are talking about the length of the same side)  you should get the answer 3,200 then multiply by 2 bc they're 2 bookshelves .  You should get 6,400 I'm not 100% sure tho

6,400

Step-by-step explanation:

Find the volume of one congruent bookshelf then you'd be doing "4 x 10 x 8  x 10" (not another 8 bc they are talking about the length of the same side)  you should get the answer 3,200 then multiply by 2 bc they're 2 bookshelves .  You should get 6,400 I'm not also 100% sure

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: