The ratio of teachers to students at a school is 3 : 74. There are 2,500 students at the school. About how many teachers are at the school?

68 increased by 28% =

1. Which of the following is the equation of the axis of symmetry for the function? y = x2 - 4x + 8 A. x = - 4 B. x = 2 C. y = - 2 D. y = 2x 2. This function has how many solutions? 4x2 = 0 A. 2 B. 1 C. 0 3.

What is the object distance? you will need to use the magnification equation to find a relationship between s and s′. then substitute into the thin lens equation to solve for s.?

Simplify - 4x^5 - 42x^5

Simplify the expression: - 3 (m + 6) - 5m + 9 (2m - 16)

Making Conclusion: if the sun is shining, then it is a beautiful day. If it is a beautiful day, then we will have a picnic.

A car uses 7 litres of petrol for every 100 km travelled. Which is the best estimate for the amount of petrol (in litres) needed to travel 590 km?

jasmine had 11 friends over at her house. everytime the doorbell rang 2 more friends arrived. the doorbell rand 3 times. how many friends did jasmine have altogether

Show work? |5x+10|=-7

Meg lives in Indianapolis and wants to visit her mom in Lima. She has been meaning to go to a chiropractor in Dayton, so she is wondering whether it makes sense to stop there on the way.