Formula to find the following problem

what is the next number in the series 131 118 105 92 79

Find the legth of the missing side of the triangle

Twice the sum of x and 3 is less than 5

James works as a tutor and a lawn mower. Both jobs require that he work at least three hours per week. Since James attends school, he can only work 15 hours a week.

Farmer Tom raises ducks and horses on his farm. All of his horses need new horseshoes. He calls the farrier (a person who puts shoes on horses) but has a difficult time remembering how many of each animal he owns.

Gary needs to run20 miles in one week. if he runs 2 1/4 miles for 7 days, would he reach his goal? How much more or less will he have to run

Jeff goes to the fair and spends a fourth of his money on the ticket and half of his money on food. If he spent a total of $24, how much did he arrive with

Jenny wants to multiply out the brackets in the expression 3 (2a+1) she writes 3 (2a+1) = 6a+1 show why jenny is wrong

What is the solution to - 122 < - 3 (-2 - 8x) - 8x? A. x < 8 B. x > 5 C. x > - 8 D. x < - 2

2 kitchen assistants can prepare 10 kg of vegetables in 60 minutes. How long would it take 15 assistants to prepare the same amount?

What number has 2 hundreds, the same number of tens as hundreds, and 2 more ones than hundreds?