On a windy day, a hot air balloon is tightly secured to a stake in the ground. The height
of the balloon is 79 ft. Find the distance
(hypotenuse) from the balloon to the stake on
the ground. Round to the nearest feet.
42 ft?

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Which of the following statements is not true? a. parallel lines are lines in the same plane that never intersect. b. congruent figures have the same shape and same size angles and sides. c. similar figures must have the same shape and the same size. d. a rotation is when you turn a figure around a certain point.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?