Write the slope-intercept form of an equation that passes through the point ( 3,–1), and is perpendicular to y = -3/4x + 2 1. y = -3/4x + 5
2. y = -3/4x - 5
3. y = -4/3x - 5
4. y = 4/3x - 5

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

How can i differentiate this equation?

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint