The half-life of a radioactive kind of yttrium is 50 minutes. How much will be left after 100 minutes, if you start with 120 grams of it?

An architect is designing a new library. The library's floor plan is a rectangle divided into a bookshelf space with bookshelves, and a reading space with a rug and chairs. Each bookshelf is x ft wide and x + 3 ft long.

What is the gcf of 28,56, and 84

According to the americans with disabilities act, a ramp can rise no more than 1 ft for every 12 ft of horizontal distance. what is the maximum angle that a ramp can form with the ground?

Is (0,3) a solution to the equation y=x+3? yes no Is (1,-4) a solution to the equation y=-2x? yes no

Select the correct answer from each drop-down menu. The boundary of a park is shaped like a circle. The park has a rectangular playground in the center and 2 square flower beds, one on each side of the playground.

A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 6 cm more than the shorter leg and the hypotenuse 12 cm more than the shorter leg. How long should the sides of the triangle be?

To celebrate, Clare went out to eat with her 3 friends. Their meal, including tax, was $75. If they left a tip, what is their total bill including the tip.

2x + 2/3 equals 1/3 what is X

Jermain made 6 candles. lukas made 4 times as many candles as jermain did. they plan to pack the candles in boxes with 3 candles in each box. how many boxes will they need for all the candles?

Write an expression to represent. the difference of 8 squeared and a number