The half-life of uranium-235 is 700 million years. If you start with 50 atoms of it, how many will you have left after 700 million years?

A. 50

B. 100

C. 25

D. 45

Complete the equation of variation where y varies inversely as x and y = 0.125 when x = 8.

Convert the following pairs of decimal numbers to 5-bit 2's-complement numbers, then add them. State whether or not overflow occurs in each case. (a) 4 and 11 (b) 6 and 14 (c) - 13 and 12 (d) - 4 and 8 (e) - 2 and - 9 (f) - 9 and - 14

What is 150% of 5000? Round to the nearest hundredth (if necessary).

Does anyone know What is 41% of 53kg

Find the area of a circle that has a diameter of 11 inches. Approximate Π as 3.14. Round your answer to the nearest hundredth.

A plane ticket cost b dollars for an adult ticket and k dollars for a child. Find an expression that represents the total cost for 9 adults and 3 children.

Use the distributive property to expand the expression. - (3a3 - 4b2) (12x - 9y - 5)

What is the mixed number for 14/3

What is the opposite of (-3) ?

Shane and Abha earned a team badge that required their team to collect no less than 2000 cans for recycling. Abha collected 178 more cans than Shane did. Write an inequality to determine the number of cans, S, that Shane could have collected.