When is estimation is an effective way to determine an answer

What is the y-value of tan (x) when x = 90°? -1 0 1 does not exist

What is the value of x in the equation? 2.5 (6x-4) = 10+4 (1.5+0.5x) 1/3 1/2 2 13

Julia is going for a walk through the neighborhood. What unit of measure is most appropriate to describe the distance she walks?

What is the final amount if 2162 is decreased by 3% followed by a further 3% decrease? Give your answer rounded to 2 DP.

Which of the following is a solution of x2 - 7x = - 5? A. 7 plus or minus the square root of 69 divided by two. B. 7 plus or minus the square root of 29 divided by two. C. negative 7 plus or minus the square root of 29 divided by two. D.

Jack says that because kites do not have parallel sides, a square is not a kite. Explain his error in thinking.

The sales tax rate is 10%. If Vera buys a soup pot priced at $58, what will be the total cost including tax?

What is the value of 6[4-9.47]?

An airplane flies with an constant speed of 440 miles per hour. How far can it travel in 185 minutes? Round to the nearest tenth place.

Attendance at the big game was only 80% of last years attendance, but that still means 12,000 people showed up. how many people showed up last year?