Slope, m=9. y-intercept, b=2. y=mx+b. y=+ substitute the given values for m and b.

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

i think that you should ask google for the answer to that problem because if we don't know it google does