Estimate the sum 518+251

Is there more than one way to write 8 x 64 in a expression?

What is the solution to (3*10^2) * (5*10^5) written in Scientific notation

Select all of the relations that are functions. { (a, 1), (b, 1), (c, 1) } { (a, a), (a, b), (a, c) } { (1, a), (2, a), (3, a) } { (a, a), (b, b), (c, c) }

Solve the following equation algebraically: x squared = 36 a. x = plus-or-minus 18 b. x = plus-or-minus 6 c. x = negative 6 d. x = negative 18

Casey bought sandwiches and bags of chips. Each sandwich cost three times as much as a bag of chips. She bought 5 sandwiches for $6 each and spent $42. How many bags of chips b did she buy?

Which statement is rewritten as a conditional statement for the sentence below? All dogs have tails. A.) if an animal is a dog, then it has a tail. B.) if an animal is not a dog, then it has a tail. C.) if an animal has a tail, then it is a dog. D.

Six times a number is 42 what is the number

George is keeping a record of how many miles his car can travel with one tank of gas. If he has a full 13 gallon tank of gas and can travel 17.2 miles per gallon, how many total miles will he be able to travel? A) 68.8 B) 130 C) 223.

RJ's soccer team has a record of winning 2 matches for every 3 they lose. If the team lost 15 matches during the season, how many matches did they win?

The stock of Company A lost $4.25 throughout the day and ended at a value of $63.75. By what percentage did the stock decline?