Jeff’s office is on the 6th floor of a city building. he parks his car 2 levels below ground. to remain fit jeff walks up the fire stairs from the parking level to his office. there are 15 steps between each level or floor. how many steps does he walk up at the beginning of each work day? note that there is a ground floor level in buildings. (show your working.)

120 steps

Step-by-step explanation:2+6=8 8 times 15=120

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

what do u need to know

step-by-step explanation: