Zane is a dangerous fellow who likes to go rock climbing in active volcanoes. One time, when he was 20 meters
below the edge of a volcano, he heard some rumbling, so
he decided to climb up out of there as quickly as he could.
He managed to climb up 4 meters each second and get
out of the volcano safely.
Graph the relationship between Zane's elevation relative
to the edge of the volcano (in meters) and time (in
seconds)

step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

srry i'm not done ! i'll

y= -2x+4, have a great day

a) at most means it can cost $12 or less

so the inequality sign would be ≤

you would then need to multiply the number of toppings by the 0.35 for each one and add it to the cost of the cheese pizza.

the equation would be 9.99 + 0.35x ≤ 12

b) using the above equation:

9.99 + 0.35x ≤ 12

subtract 9.99 from each side:

0.35x ≤2.01

divide both sides by 0.35:

x ≤ 2.01 / 0.35

x ≤5.74

at most you could have 5 toppings.

the 5 topping pizza would cost: 0.35 x 5 = 1.75 + 9.99 = $11.74