1. ## Algebra

Scatter plots and least square lines. The number of home runs hit by a player. 1990 1991 92 93 94 95 96 97 98 99 39. 22. 42 9. 9. 39 52 58 70 65 Find the equation of the least square line? Y=4.9x+18.5 Find the correlation, r, to the nearest hundredth? 0.68
2. ## Algebra

Write an equation in slope intercept form of the line that passes through the given point and is perpendicular to the graph of the given equation. (1,-6). X-2y=4
3. ## math

The cost of a pencil is \$0.25 more than the cost of an eraser. If the cost of 8 pencils and 10 erasers is \$12.80, find the cost of each.
4. ## CHEMISTRY

CALCULATE THE MOLARITY OF 50.0g OF NaCL IN 7820mL OF SOLUTION
5. ## Math

If a mixture of a 6% acid solution with an 11% solution is to be made, how much of each solution is needed to make 10 liters of an 8% acid solution?
6. ## Algebra

How do I find the perimeter of a triangle DMG which has coordinates D(3,-2), M(3,4) and g(1,-2) - my son can't do the problem and I don't remember how to do it anymore