Place a check mark next to each expression that is equivalent to - 2/3

A news article says that high school students are currently spending an average of 15 hours per week doing homework online. You don't think this is an accurate estimate, although you're not sure whether the real value is higher or lower.

How many minutes pass from 4:21 to 4:59

If you answer this I will mark you brainy! In an appropriate environment, guppies reproduce at an astounding rate. a population of breeding guppies doubles every 2 months.

Approximately how many pounds are in 17 kilograms? (1 kg? 2.2 lbs) A) 8 B) 17 C) 37 D) 50

A bank contains 27 coins consisting of dimes and quarters. the coins have a total value of $4.95. Find the number of dimes and quarters in the bank.

Y=-x^2+4 y=2x+1 I'm not sure how to solve for this system of equations

what are the new coordinates after reflecting across x=2 if the coordinates are K (-2,-1) L (-2,-3) M (-5,-3) N (-5,-1)

Suppose you make a conjecture that your dog only eats dog food A. A valid counterexample is that last night he ate dog food. True or False

A square garden with a side length 150 m has a square swimming pool in very center with a side length 25 m. Calculate the area of the garden.

A group of objects or numbers is called a ...