Chau is saving money to buy a game. The game cost $20, and so far he has saved four-fifths of this cost. How much money has Chau saved?

Complete the square 2x

A manufacturer makes bags of popcorn and bags of potato chips. the average weight of a bag of popcorn is supposed to be 3.02 ounces with an allowable deviation of 0.02 ounces. the average weight of a bag of potato chips is supposed to be 5.

A fan is marked up 40% off the original price. The original price was $20. What is the new price of the fan before sales tax

If the ratio of black to grey tiles is 3:5, how many black tiles are there in each pack? Show your working out. Pack size tiles; 32,48,880,2048,1152 Black tiles: * answer.

The simple interest formula is I = Prt, where I represents simple interest on an amount, P, for t years at a rate of r, where r is expressed as a decimal.

In a lab experiment, the decay of a radioactive isotope is being observed. At the beginning of the first day of the experiment the mass of the substance was 1100 grams and mass was decreasing by 10% per day.

Solve for x, assuming a, b, and c are negative constants. (ax + b) / c ≤ b

6 Isabella paid a $50 initiation fee to the gym. Each month she pays $25. Write a linear equation that shows how much Isabella spent, y, at the gym in x months.

Nicole has $120. if she saves $20 per week, in how many days will she have $500?

How many triangles form by the diagonals from a fixed vertex has 11 12 13 14 15 sided polygon