About matrix presentation in class 9 optional math​

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15