Andy estimated that he would need 77 feet of lumber for a tree house project. He later found that the actual amount of lumber needed was 66 feet. What was the percent error of Andy's estimation?

Greatest Common Factor of 55 and 77

My table is 123 $ it is 20% discount so what is original price

10. Find the inverse of the function: f (x) = log5 (x+4) 11. Solve for x: 16*+2 = 84+3

The temperature in Vancouver was - 6ºC. In Austin the temperature was 10ºC. How many degrees warmer was the temperature in Austin?

Using the Quadratic Formula, which of the following is the solution to the quadratic equation 5x2 + 10x - 5 = 0? x = - 1 - √2, x = - 1 + √2 x = - 1 - √5, x = - 1 + √5 x = 1 - √2, x = 1 + √2 x = - 1 - √201, x = - 1 + √201

Anna tossed 3 coins in the air. What is the probability that exactly 2 of the coins show heads? Look back at all of the possible outcomes from #2 and use that to find your probability. Write the probability as a fraction. Simplify, if needed.

A gold and diamond bracelet sells for $1800. Find the sales tax and total price if the sales tax rate is 3.5%.

A squirrel found 48 acorns in a 3-day period. Each day the squirrel found 5 more acorns than the day before. How many acorns did the squirrel find on the first day?

After work Gladys used the ATM to deposit her paycheck for $638.77 and to withdraw $200 cash. If her starting bank balance was $418.03 what is her new balance

Anita read 24 pages of her book in 12 minutes how long will it take her to read 34 pages