Activity 2. Problem solving
(a) Mark started selling snacks in the nearby school. In one day he spends P200 for rent and P25 for each snack item he prepares. His expenses in a single day can be expressed as the function C(x) = 25x + 200, where x is the number of items and C(x) is his daily expenses in pesos. How much are his expenses if he prepares 100 snack items? 150 snack items?
(b) The function for the height of an object dropped from a 100-meter tall platform at time t seconds is approximated by s(t) =- 5t2 + 100 (This formula is based on an approximated value for the acceleration g = 10m/s due to gravity). What is height of the object after 2 seconds? After 4 seconds?
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