Write an equation in the form y = mx + b for each situation PLEASE PLASE PLLEASE 5 and 6. Thanks also i need it like now!

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12

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

Yesi's dog weighed 5 pounds when she got him. he now yesi's dog weighed 5 pounds when she got him. he now weighs 45 pounds. how much did yesi's dog gain, in ounces?