Lucy and Emily are racing with each other and Lucy is 90 meters in front of Emily. The distance (in meters) that Lucy
runs, for every second t, can be given by A(t)=2t and the
distance (in meters) that Emily runs, for every second t can be
given by B(t)= 5t. How many seconds will it take for Emily to
catch up with Lucy? Give your answer to the nearest whole
number.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

greater than one

step-by-step explanation:

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours