In order from top to bottom.
perpendicular
zero slope
undefined slope
parallel lines
rise
run
positive slope
negative slope
constant rate of change
Answer:
1 minute
you just have to divide 180m by 3m= 60s
The absolute value of a number tells us how far away from 0 that number is...
death valley : | -282 | = 282....so this is 282 spaces from 0
mississippi river : | 279 | = 279...so this is 279 spaces from 0
so the mississippi river is closer to 0 then death valley
A.
Getting an exact number for gravel is difficult because it spills and the ground is not usually perfectly level. Thus it would be okay to estimate the amount needed.