Estimate 700+701.6+700.98+701.36 using clustering

Find ST if S is between R and T, SR = 2x + 7, ST = x - 6, and RT = 100

Two numbers are said to be 'relatively prime' if their greatest common factor is 1. How many integers greater than 10 and less than 30 are relatively prime with 28?

On Friday, a local hamburger shop sold a combined total of 288 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the number of hamburgers sold. How many hamburgers were sold on Friday?

Hazel's town voted on a new speed limit. 10% of the 70 voted were in favor of the new speed limit. How many votes were not in favor?

Need to simplify 1/5n - 3/4+7/10n and how

What is 15 divided 1/3

Danielle had planned her gift basket to be priced at $50 with a 40% gross margin. She forgot packaging costs which will be $3 per unit.

Vanessa earns a base

In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 marks. The test if out of 80. What percentage does Dominic score in the test?

Consider the sum of 3/5 + 3/4. round each fraction and estimate the sum. add the two fractions using a common denominator and then round the result. which estimate is closer to the actual answer.