Someone please answer this emergency pleaseee

7). y = 140

8). x = 9

Step-by-step explanation:

Question (7).

All-right pencil factory will produce the graphite pencils, table formed will represent a linear graph.

Three points on the graph are (12, 42) and (18, 63), (40, y)

Slope of the line passing through these points =

m = =

=

3.5 =

98 = y - 42

y = 140

Question (8),

If a bicyclist rides at a constant rate, table formed will represent a linear graph.

Slope of a line passing through three points (2, 25), (5, 62.5) and (x, 112.5) given in the table,

m =

37.5x - 187.5 = 150

37.5x = 337.5

x = 9

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation:

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative