Find a positive number that equals 12 when added to its square

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What is the value of the expression when a is 5 and b is 3 4a^2-5b^2

Toru takes his dog to be groomed. The fee to groom the dog is $75 plus 7% tax. Is $80 enough to pay for the service? Explain.

A local music store sells a popular brand of amplifier. In one month, they sold 56 units for a total profit of $2,917.60. If the shop sells 44 units the next month, how much profit will they make that month? A. $2,288.00 B. $2,292.40 C. $2,396.60 D.

An urn contains 1 green ball, 1 red ball, 1 yellow ball and 1 white ball. I draw 4 balls with replacement. What is the probability that there is at least one color that is repeated exactly twice?

There is a population of 100,000 bacteria in a colony. if the number of bacteria doubles every 270 hours, what will the population be 810 hours from now?

The beginning balance on the monthly bank statement for Sierra's checking account was $402.22, and the ending balance was $231.75. What can be said about Sierra's transactions for the month? O A. She had $170.47 more in debits than in credits. O B.

What's the unit rate of 4 and 20 8 and 40

What is 3/7 times 1/4?

An airplane flew at an average of 432 miles per hour for 2 1/2 hours how far did the plane fly

Determine the median of the following numbers 8 11 11 12 13 15,16 16 18 21