50 spiders doubling every 4 years, how many spiders will be in the forest after 20 years

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

The graph shows the amount of money noah earned based on the number of lawns he cut. which list shows the dependent quantities in the graph?