Answer:
70% are propane grills.
Explanation:
First, we will find out how many grills are propane. We will add all of the grills that are not propane together.
10 + 5 = 15
And subtract that from the total amount
50 - 15 = 35
Then we will divide the amount of propane grills by the total amount
35 / 50 = 0.7
And multiply that by 100 to get our percentage.
0.7 * 100 = 70