Nathaniel drives 45 miles in 30 minutes. If he drove three hours in total at the same rate, how far did he go?

270 miles

Step-by-step explanation:

45x2=90

90x3=270

1hr= 60mins

3hrs=180 mins

if 30 mins =45 miles

180 mins=180×45÷30

              =270 miles

Step-by-step explanation: Hope it helps

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.