Which of the following units for mass is a SI unit

1) decakilogram

2) kilogram

3) ounce

4) pound

Suppose r varies directly with t and that r=40 when t=5. what is the value of r when t=11?

A rectangle is drawn so that the width is 4 feet shorter than the length. the area of the rectangle is 32 square feet. find the length of the rectangle.

Chris is 3 years older than Jacob. Nathan is eighteen years old. Two years ago the sum of all their ages was 59 years old. How old is Jacob?

Find the total cost for a $579 smartphone with 5% sales tax

What is not equivalent to 36/72

Larry is renting an apartment that will cost r dollars per month. He must pay a $100 application fee and a $25 credit report fee. His security deposit is two month's rent, and he must also pay the last month's rent upon signing the lease.

Given the binomials (x - 3), (x - 1), (x + 2), and (x + 3), which one is a factor of f (x) = 2x3 + 3x2 - 2x - 3? (x - 3) (x - 1) (x + 2) (x + 3)

5y + 6z2 - y3; y=4 z=5 (I can't input exponents; the 2 in 6z2 is an exponent, and the 3 in y3 is, too.)

12 for charity walk 3 miles how much did his cousin pay per mile

What is 5x-2=48 what is the x