How to find friction force of ground on a block and block on the ground

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

1: 4 if the wew 35 surfboards at the beach how many were short boards?

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?