I need help on questions 8 and 9.

for number 8 b=-2 m=0.5 y= 0.5x-2

for number 9 b= i don't know

Step-by-step explanation:

the line goes through -2 to get b. m crosses through somewhere around the 0.5 line to estimate you would say. the equation you are looking for would be y=mx+b

99

step-by-step explanation:

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: