There are as many equivalence classes as there are which of the following? (Select all that apply.) What is the correct answer? Answer Choices:
A. distinct horizontal lines in the plane
B. distinct integers
C. distinct real numbers
D. distinct vertical lines in the plane
E. distinct lines in the plane whose coordinates equal each other

Suppose a pendulum is l meters long. the time, t,in seconds that it tales to swing back and forth once is given by t=2.01

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.