Questions asked by Hieu N.
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Krisha’s school is 40 miles away. She drove at a rate of 40 mph (miles per hour) for the first half of the distance, then 60 mph for the remainder of the distance. What was her average speed for the entire trip?

Shayli is a good note taker. So far this school year, she has taken 326 pages of notes. If she wants to number all the pages in her notebook, how many digits will she need to write in total? thx for helping

If #a + b = 8# and #a^2 + b^2 = 60#, what is #a^2b^2# ?

What is an expression for the sum of the roots of quadratic ax^2 + bx^2 + c?

If #sqrt(x) + 1/sqrt(x) = 3#, what is #x^2 + 1/x^2#?

Which of the following integers, when doubled,
produces a number that is 2 greater
than a multiple of 6?
(A) 5
(B) 6
(C) 7
(D) 8
(E) 9

If #9(1/3)^2 = 3^m#, what is the value m + n?

1,2,1,2,1,2...
what is the sum of the first 20 terms?

Beth had planned to run an average of 6 miles per hour in a race. She had a very good race and ran at an average speed of 7 mile per hour, finishing 10 minutes sooner than she would if she had averaged 6 miles per hour. How long was the race?

Jose needs a #5/8# meter length of copper pipe to complete a project. Which of the following lengths of pipe can be cut to the required length with the least length of pipe left over?
#9/16# meter.
#3/5# meter.
#3/4# meter.
#4/5# meter.
#5/6# meter.

Factor #x^3 – 6x^2 + 5x + 12# ?