When is the estimation of products a useful tool?

Which statement is true? a. - 16+23 = - 17+10 b. 15 + (-5) > 23 + (-12) c. 8 + (-7) < - 15+14 d. - 12 + (-11) > 5 + (-29)

D $192.00 10 You want to purchase a new iPhone that costs $899 plus 8.25% sales tax. You plan to save 15% of your total weekly pay each week.

A bus is traveling at 50 mph. If the rate of speed increases 3 mph each hour, how long will it be before the bus is traveling at a rate of 80 mph? A. 9 hours B. 10 hours C. 11 hours D. 12 hours

Round 689 to the nearest ten

The sum of two consecutive numbers is 156 what is the greater number

Raffey is upgrading his cell phone and monthly service plan check sell offers a new phone for $50 and unlimited service for a monthly fee of $40 cellular offers a new phone and unlimited service for a monthly fee of $50 after how many months were

June and Sushil win some money and share it in the ratio 1:4. June gets £14. How much did Sushil get?

Teachers at price middle school are planning a birthday party for the principal planners estimated that 42 slices of cake would be needed. In fact only 30 slices of cake were eating what was the error in estimate of how mucj cake was eaten?

A number is 42,300 when multiplied by 10. find the product of this number and 500

The sum of three consecutive odd numbers is - 87. What are the numbers?