Please answer this correctly
In the parking lot of Super Save-A-Lot, 20% of the vehicles in the parking lot are pickup trucks. There are 14 pickup trucks in the parking lot. How many total vehicles are in the parking lot?

70 vehicles

Step-by-step explanation:

To solve this problem, you take the number of items there are (pickup trucks in this case) and divide it by the percentage of those items (20%).

14 / 20% = 14 / (20/100) = 14/0.2 = 70

We can check by taking 20% of 70 and seeing if it is 14:

.2 * 70 = 14

We are correct. Thus, the total number of vehicles is 70.

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: