Cody decreased the speed of his car by 3.5 miles per second over a period of 60 seconds.
Find the average change in speed each
second.

number one is the correct answer

step-by-step explanation: dogs and cats are mentioned, no other animals

no not all of them.

step-by-step explanation:

some of them have a square base.

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.