I need help please. This is passage and question: As used in the passage the words “arid velt” means:

A. An opening at the bottom of the river
B. A swampy basin
C. A densely wooded bank
D. A dry open piece of land

If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

Jim has found that he must consume 2,300 calories a day to reach his health goals, but he doesn't want to give up his afternoon snack of pretzels. unfortunately, he tends to eat the entire bag — which amounts to 1,300 calories! what strategy should jim use to improve his habits?

Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a clep exam is: