The landscape company paves patios for its customers using concrete. the graph represents the amount of concrete used, in pounds, over time, in hours.

how many pounds of concrete were used before the workers took a break?

i am between 160 and 240

the answer is 80

Step-by-step explanation:

I just took test so, I know this is the right answer

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.