Matt is showing his work in simplifying (6.2 - 1.6) - 4.4 + 7.8. Identify any error in his work or reasoning.

0.00014s in scientific notation? ... ?

Given that a>b, solve for x in terms of a and b b (x-3) >ax+7b

Solve for y. -80 + y = 80 a. y=-160 b. y = 160 c. y=o

In the past 4 years, a sporting goods store had two yearly losses of $28,000 and $42,000 and two yearly profits of $104,000 and $10,000. What was the net profit or loss over 4 years? A. -$70,000 B. $114,000 C. $44,000 D. -$44,000

Which expression is the greatest common factor of the two addends in 18x + 30x^2? A.) 3x + 5x^2 B.) 30 C.) 18x D.) 30

A plane left chicago at 8:00 A. M. At 1 PM the plane landed in Los Angles, which is 1500 miles away. What is the average speed of the plane for the trip?

The space shuttle can travel about 8*10 to the power of 5 centimeters per second. Is it more appropriate to report this rate as 8*10 to the power of 5 centimeters per second or 8 kilometers per second?

Which set of side lengths form a right triangle? A 14m, 20m, 25m B 10cm, 6cm, 8cm C 7cm, 8cm, 10cm D 3ft, 6ft, 5 ft

A car tire has a radius of 1.5 feet. If the tire is rotating at 800 rpm, what is the speed of the car in miles per hour (1 mile = 5,280 feet) ? Round the answer to the nearest tenth.

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Mrs. Walters drove 160 miles on 5 gallons of gas. How many gallons of gas will she need to travel 256 miles?