Why is the speed not the same on each surface

Ryan is putting a clothesline in his rectangular backyard. He wants to put it between two trees on the edge of his property. He has measured his property, and made the sketch shown below, where all the lengths listed are in meters.

7 + 4 + - 8 + - 7 + - 5 + 2=? Is the answer - 7?

Add. 13 + 5 3/4 Enter the sum in the box as a mixed number in simplest form.

Kevin Cook invested $3000 four times a year in an annuity due at Southern Trust Company for a period of 2 years at an interest rate of 8% compounded quarterly.

What is the following quotient? sqrt 120 / sqrt 30

write the condition to be satisfied by q so that a rational number p/q has a terminating decimal expansion

Kate can mow at a constant rate of 4/5 lawns per hour. what is the ratio of lawns per hours?

Find a, b, and h so that f (x) = a sin (b (x-h)) f (x) = 5cosx+2sinx

Half angle tan 5pi/8

Explain how three numbers form a Pythagorean triple