How much of a radioactive kind of technetium will be left after 28 minutes if the half-life is 14 minutes and you start with 72 grams?

Two trains leave stations 238 miles apart at the same time and travel toward each other. One train travels at 95 miles per hour while the other travels at 75 miles per hour. How long will it take for the two trains to meet. Do not round

320 students went on a field trip to the zoo. After, they took a survey on which animal was their favorite. 25% of students chose the tigers. 30% chose the monkeys. 10% chose the sea otters. The remainder of students said 'other'.

What is the solution (a, c) to this system of linear equations? 2a - 3c = - 6 a + 2c = 11

Which of the following choices represents negative correlation. A. The more someone studies, the higher their test score is. B. As the number of guests increases, so does the number of plates purchased. C.

What is the domain of g (x) ?

Find the scale factor for the dilation. ba Bom a ...3333 b. 2/6 C. 1/3 d. All of the above

What what scientists do that is the basis for their investigation word that mean that

Ms. Morales has 5 bags of clay. There is of a pound of clay in each bag. In all, how many pounds of clay are in the bags?

A grain of sand weighs approximately 0.011 grams. There are approximately 7.5 x 10^18 grains of sand in the world. Using scientific notation, calculate approximately how much all the grains of sand in the world weigh (in grams).

the temperature is - 4°f. A high pressure front increases the temperature to 8°f. by how many degrees did the temperature increases?