Where is math come from?

If the mean of 4,8 and x is 7 what is the value of x

Explain why numbers with a 5 in ones place or not prime numbers

What is the range of the function? (1,2) (2,4) (3,9) (4,16)

Sarah only knows the diameter of a circle. What should she do to find the radius?

The common ratio of a geometric series is 3 and the sum of the first 8 terms is 3280. What is the first term of the series?

Greg ran the first leg of a relay in 6.2 seconds. Jeff ran the second leg of the relay in 6.6 seconds. How much time has the relay team run so far?

Ratios - coca cola has 65g sugars total. Equivalent amount of carrots: 1.383 kg or approx 3 lbs. so question asks "Use ratios to determine how many grams of sugar are and 1 kg of carrots". How do I do?

Which of the binomials below is a factor of this trinomial x^2+4x+4

A fence is 692 m long. It is cut into three parts. Two parts are the same length, and the third part is 26 m longer than either of the other two. Find the length of each part.

Grace and Max worked together on a math problem. they had a rectangle piece of paper that 14 inches long and 11 inches wide they where asked to cut this piece of paper into 1/8 inches wide strips using the length of paper how many 1/8 inches wide