The half-life of rubidium 89 is 15 minutes if the initial mass of the isotope is 250 g how many grams will be left after hundred minutes

The measure of xy is 124 what is the measure of xyz the tangent chord angle

The length of a bridge on a map is 1.5 cm. What is the actual length of the bridge in meters if the map is drawn at a scale of 1:40,000.

Two legs of a right triangle are 5 inches in 12 inches what is the length of the hypotenuse A. 34 inches B. 60 in C. 13in D. 17 in

The price of a pair of shoes increase from $54 to $65. What

Jake completed a marathon race 3 hours and 12 minutes. write Jakes running time as a decimal

Mrs. Jacobsen purchased a 5-pound package of ground beef for $12.40. She decided to use 8 ounces each day for dinner recipes. What was the cost of ground beef per meal?

If (7^2) ^p = 7^6, what is the value of p? 2 3 4 8

The population at Saint Maria High increased from 1800 students ten years ago to 1926 students last year. What was the percent increase?

A triangle is placed in a semicircle with a radius of 7cm, as shown below. Find the area of the shaded region. Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer. 7cm

What can each term of the equation be multiplied by to eliminate the fractions before solving