I need assistance with these questions to add it in my notes

QUESTION 9 In a computer store, 30% of the computers in stock are laptops, 60% are traditional desktops, and 10% are all-in-one touch screen machines. Ten percent of the laptops, thirteen percent of the desktops, and five percent of the all- in-one machines are on sale. A computer is randomly chosen from the inventory of the store. Find the probability that the computer chosen is a desktop and is not on sale. O a. 0.044 O b. 0.078 O c. 0.304 O d. 0.522 O e. 0.887 QUESTION 10 In a computer store, 30% of the computers in stock are laptops, 60% are traditional desktops, and 10% are all-in-one touch screen machines. Ten percent of the laptops, thirteen percent of the desktops, and five percent of the all- in-one machines are on sale. A computer is randomly chosen from the inventory of the store. Find the probability that the computer chosen is not on sale. O a. 0.044 O b. 0.078 O c. 0.304 O d. 0.522 O e. 0.687 QUESTION 11 In a computer store, 30% of the computers in stock are laptops, 60% are traditional desktops, and 10% are all-in-one touch screen machines. Ten percent of the laptops, thirteen percent of the desktops, and five percent of the all- in-one machines are on sale. A computer is randomly chosen from the inventory of the store. If the computer chosen is not on sale, what is the probability that the computer is a laptop? O a. 0.044 O b. 0.078 O c. 0.304 O d. 0.522 O e. 0.887