Round 685,135 to the nearest ten thousand.

A tortoise is walking in the desert. It walks at a speed of 5 meters per minute for 62.5 meters. For how many minutes does it walk?

It costs 3 3 tickets to play a game at the fair. If you spent 21 21 tickets on the game, which equation could you use to solve for the number of games, g ? CLEAR CHECK 21=3 21 g = 3 21·3= 21 · 3 = g 3=21 g 3 = 21 3=21

Your team dives for 28 lobsters over 7 days. What is the average daily lobster catch?

A plumber charges a $40 service fee plus $25.00 per hour. how many hours did the plumber work if he charged a total of $165.00?

How many 2-member committees can be formed from a group of 7 people?

A password can be any string of length 7, 8, or 9. Each character in the password can be any capital letter or special character from the set {*, $, &, #, %}. There are no other restrictions on the password.

It is 1:50PM. What is the sum of the degrees the minute and hour hands of a clock will rotate between now and when it hits 2:15PM?

What does the ratio 2:1 mean?

Estimate the difference by rounding off to nearest tens. 6723 - 751

Who invented the square root of negative one?