4. One event at a debate tournament lasted-

2 hours. Each contestant spoke for 1 of an

hour. How many contestants were there?

Sarah drove 40 miles per hour. in 3 hours, sarah drove 120 miles. what is a valid proportion to represent the problem?

Goran bought 7 pounds of sugar for $4. How many dollars did he pay per pound of sugar?

There are 2200 students in a school. 52.5% of them are male. How many are female?

With a growth rate parameter of 3.9% per hour. how many hours does it take for the size of the sample to double?

It is estimated that approximately one-half of all aluminum cans will be recycled each year. If a soft drink company produces 350,000 cans one year, how many cans are still in use after 4 years of recycling and re-using, using this function?

Solve the system of equations using substitution. y=x+6 y=-2x-3 A. (4,11) B. (-3,3) C. (-6,3/2) D. (1,7)

Is upside down triangle also polygon

Easy question. Pia, Gauri, Zarna and Yasmin have EQUAL number of pencils. Each of them ties their pencils in bundles with each bundle containing the same number of pencils. - Pia ties 10 pencils together as a bundle.

3. Jada is making a scale model of the solar system. The distance from Earth to the moon is about 2.389 x 10 miles. The distance from Earth to the sun is about 9.296 X 10' miles.

Which sets of measurements could be the interior angle measures of a triangle? Select each correct answer. (There is more than one correct answer)