don't get this at all

14. At a supermarket salad bar, the price of a salad depends on its weight. Salad costs $3.99 per pound. Write an expression that describes the total cost in terms of the weight of the salad, w.

15. Your family is hiking downhill from a campsite 4000 feet above sea level. You descend an average of 500 vertical feet each hour. Write an expression to describe your height in terms of the time spent climbing, t.

Question

don't get this at all 

14.  At a supermarket salad bar, the price of a salad depends on its weight.  Salad costs $3.99 per     pound.  Write an expression that describes the total cost in terms of the weight of the salad, w.


15. Your family is hiking downhill from a campsite 4000 feet above sea level.  You descend an average of 500 vertical feet each hour.  Write an expression to describe your height in terms of the time spent climbing, t.

anonymous · Answer

hi

cj49 · Answer

so 3.99xW

cj49 · Answer

eg.if one bar of chocolate wud cost me $3 then the total cost of buying 3 bars of chocolate's wud be 3x3=9

anonymous · Answer

yeah

anonymous · Answer

so... 

3.99xW is the answer?

anonymous · Answer

cause 3.99 times Weight gives the solution right?

cj49 · Answer

yes its 3.99 per pound so to find the total cost ull need to multily it with the total weight

anonymous · Answer

i thought that was the answer but it seemed to simple to be the answer lol 

and for the second one is it 500xT?

cj49 · Answer

to descend it wud take 8hrs ....and to climb it wud be t x the rate at which he is climbing

anonymous · Answer

so      4000-500xT

cj49 · Answer

your height means the mountain's height ryt

anonymous · Answer

so whats the expression for the question?

cj49 · Answer

500xT=height of the mountain

anonymous · Answer

oh alright thanks @cj49

cj49 · Answer

np c: