21 environmentalists decide to go to lunch. The probability they order pizza and/or a cheeseburger is 11/21. The probability someone orders a cheeseburger is 1/3 and the probability someone orders pizza is 2/7. What is the probability that someone orders both? (Hint: Venn Diagram)

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58

a) is $10.34

b) is 6 toppings