Is this perpendicular or parallel?

y=5x+3 and y=-5x+8

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.

i think it might be a but you might want a second opinion

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

6 and 24

step-by-step explanation:

6 x 4 = 24