Can somebody please answer these two math problems!

1. A football team gained 4 yards in one play. In the next play, the team lost 4 yards. What is
the team's net yard gain?

2. Between 8 a. m. and 3 p. m. on a summer day, the outdoor temperature increased by 23º.
Between 3 p. m. and 10 p. m., the temperature decreased by 23°. What was the net change in
temperature from 8 a. m. to 10 p. m.?

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

Alength on a map is 7.5 inches. thescale is 1 inch: 5 miles. what is theactual distance? a 1.5 miles c 12.5 milesb 2.5 miles d 37.5 miles

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer