Answer:
d 100
Step-by-step explanation: 2(7*4)+2(4*2)+2(7*2)= 56+16+28=100
Answer:
10 km
Step-by-step explanation:
0.5*2=1 hour
5*2=10 km
1: Assuming this line is linear, the first thing to do is find the slope.
The slope formula is

, so in this case, it is

, which comes to

. Then, use your slope and one of the points given to write the point-slope formula of the linear equation, and then written in standard form:
y=

x-

.
2. Use the same process as in question 1 to find:
y=-7x+11
F x G (x)
(2x + 8) x (6x + 6)
12x^2 + 12x + 48x + 48
12x^2 + 60x + 48
x^2 + 5x + 4 (Answer)
Hope this helps