A farmer hears a weather report saying that temperatures will be decreasing approximately 5° every hour for the next 3 hours. What signed number represents the total change in temperature expected over the next 3 hours?

What does x = in this equation x+3+2x=x+5

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points