:norman left home and was traveling at 40 mph. if earl leaves 30 minutes later and is traveling at 60 mph, how long will it take for earl to catch norman?

i think it's b

step-by-step explanation:

because the graph is 2 above (0,0)

yes. we do proportions in probabilities.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116