David spent a total of 2 1/2 hours working on his computer. he stood up and stretchef every 15 minutes before stopping. how many times did david stand up and stretch?

What is not true about a direct proportion

A sector with a area of 11 over 2 pi cm squared has a radius of 3 cm

A bag contains 6 red marbles, 5 blue marbles, 4 white marbles. what is the probability of randomly drawing a blue marbles from the bag

Evaluate - 5/9 + (-4/3) - 2/3=

Which of the following is the solution to |x| + 9 < = 7?

Employees that work at a fish store must measure the level of nitrites in the water each day. Nitrite levels should remain lower than 5 ppm as to not harm the fish.

The green (upper) triangle has an area of. the purple (lower) triangle has an area of. place the orange triangle (square symbols) directly next to the green triangle so that the two triangles together make a rectangle.

When Wyatt commutes to work, the amount of time it takes him to arrive is normally distributed with a mean of 45 minutes and a standard deviation of 3 minutes.

Use the function rule f (x) = 3x-2 find the output f (1.5)

Javier and Kyle work installing windows and can earn extra money by installing doors. Last week, Javier earned $56 more than Kyle because of door installations.