Sam picked four numbers out of the hat. after adding up the four numbers, he found that fhe average was 9. three of the numbers are 5,9, and 12. what is the fourth number

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Angie has saved 3/8 of the amount she needs to buy a bike. clive has saved 7/10 of the amount he needs to buy a skateboard. what is the difference between clive's and angie's fraction of savings?

Landon drove 103.5 miles on tuesday 320.75 miles on wednesday and 186.30 miles on thursday for work his company pays 0.07 $ for each mile he drives he expects to be paid more than $40,000 is he correct explain