What is two times negative nine over four

Sarah estimated that 230 people will attend the concert but 300 people attended. What was the percent change? Round to the nearest tenth.

The area of an equilateral triangle is 4/3 cm ^2. Find the perimeter of the equilateral triangle.

What are the factors of 54

What is the value of the two-digit integer x? (1) the sum of the two digits is 3. (2) x is divisible by 3?

a 12 ft ladder leaning against a wall at a right angle. how far does the ladder reach at a right angle?

What is the maths answer for 2/3 of 90

Dee is driving an average of 50 miles per hour.

Solve the equation, round the answers to two decimal places. 4=e^0.08t

22. Four years ago, Samantha was three times as old as Danny. Four years fromnow, Samantha will be only twice as old as Danny. How old are they now?

For a daily airline flight between two cities, the number of pieces of checked luggage has a mean of 380 and a standard deviation of 20. What number of pieces of checked luggage is 3 standard deviations above the mean?