Evaluate the expression when a=4 and b=20

b-5a

she estimates her expenses a month to be 400$ she tutors 5hours a week how much does she need to charge per hour

Professors of accountancy are in high demand at American universities. A random sample of 28 new accounting professors found the average salary was $135 thousand with a standard deviation of $16 thousand.

Convert y-4=-3 (x+5) to slope intercept form?

What makes two quantities proportional?

What is the width of a rectangle with a perimeter of 70 feet is 1 foot

Summarize how to rewrite a rational power as a radical term. Provide an example of your own.

Andy canoe is 2.7 meters long. how long would it be in milliters?

5,000 mL is equal to: 5 L 0.005 L 5,000 cm² 5,000 cm³

Find the radical equivalent of 272/3 and compute it.

Simone takes dance lessons. Her shoes cost $150 per year, her tights and leotards cost $70 per year, her hair accessories cost $15 per year, and the dance lessons cost $1,000 per year. How much will Simone pay for five years of dance lessons?