The function, f (x) = 70n-400, models the profit the instructor of guitar class per month, where n is the number of students enrolled in the class. How many students must be enrolled in the class for the instructor to make a profit?

3. Mrs Green bakes muffins. She sells them in her shop. •On Monday she bakes 200 and sells 70% of the them. On Tuesday she bakes twice as many muffins but has the same amount left. What percentage of the muffins did she sell on Tuesday?

8 x 2/4 = Will the product be more or less than 2/4

How to factor 2x-10-5x+25

A man weighs 53 pounds more than his wife, if their total weight is 313 pounds, how many more pounds does the man weigh?

You drive 150 miles in 3 hours before stopping for 30 minutes to have lunch and gas. After lunch you travel 100 miles in an hour and a half. What was your average speed?

How to recipacte fractions

Define a variable and write an inequality to represent in thus situations ... No one under 23 is allowed to captain an airplane

19125 people, exactly 75%, what is the total population of the town

The value of y varies directly with x, and y = 4.5 when x = 0.5. Find y when x = 10?

284 7.6 km 6.7 km Solve the triangle