The half-life of rubidium-89 is 15 minutes. If the initial mass of the isotope is 250 grams, how many grams will be left after 100 minutes?

When 1,250^3/4 is written in simplest radical form, which value remains under the radical? 2 5 6 8

Tickets to a play cost $10 for members and $24 for non-members write an expression to find the total cost of 4 Non member tickets and two members tickets and find the total cost show work

Cameron classified - 18/3 as real, rational, integer and a whole number and a whole number. Is he correct? why or why not?

What is the equation 22-2h=-5?

Find the area of the triangle (5.4cm) base (2cm) height dotted lines to make it a right triangle

A car dealer earns a 4% Commission on all cars sold last month he earned $7,000 in commission he wants to earn $8,000 in commission this month what increase is total sales from last month total sales does he need in order to reach a go for this

The charge for a bicylce repair was $9.28 for parts, 1/4 hour of labor at $18 per hour, and a $2 shop fee. What was the total cost (c) of the repair?

18x-16y=-312 78x-16y=408

How to estimate 5.4 x 0.1

the weight of a full steel bead tire is approximately 800 grams, while a fighter wheel weighs only 700 grams. what is the weight of each tire in pounds?