Plz i’m confused can someone with one ,three and 4 oh and 2 i’ll give you 22 points plz fast you plz plz explain for 1 plz

1. 783*23=18009, so it is 18009miles^2

2. Triangle

3. B is your variable

4. -60

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.