Statement: Reason:
Given
Triangle ABC is a right triangle.
The measure of angle C is 90°.
Definition of right angle
A + B = 90°
Subtracting equals from equals
Definition of complementary
Angle A and angle B are complementary angles.
The measure of angle B is 45º.
O 0° 90° O A + B + C = 180°

a is the right answer

d is the answer

step-by-step explanation:

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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