Answer: 40%
Step-by-step explanation: The total number of pizzas is 12 + 18 = 30. Mitchel bought 12 of those 30 pizzas. To find the percentage you do the portion/total. Thus 12/30 = 0.4, as a proportion. To turn a proportion into a percentage simply multiply by 100. 0.4 * 100 = 40%
Answer: 
Step-by-step explanation:
From the given picture, it can be seen that the radius of the circle = 16 units
Also, the measure of central angle XYZ 
radians
The area of sector with radius r and angle x radian is given by :-
Now, the area of the shaded sector is given by :-
Remember Pedmas. 1) -12+3(3)+5 = -12+9+5 = 2. 2) 3(15-12)-5 = 3(3)-5 = 4
I can’t I sorry but Ik how to subtract fractions
5x + 8 = 4
5x = -4
x = -4/5
3(-4/5) = -2.4
Solution: 3x = -2.4
