PLEASE HELP, THIS IS VERY IMPORTANT!!!

1. Multiply 7/5 and -5/4 answer as an improper fraction in simplest form
   
   
2. Multiply -2 1/2 and -3 1/3
   
   
3. Divide -24 and 7 answer as a mixed number in simplest form
   
   
4. Over 25.5 days, a pond's water level changed by an average of −0.32−0.32 centimeter each day.
   

What was the total change in the water level?

1. Multiply -1.2 and 0.4
   
   
2. Timothy recorded the monthly change in his savings account balance, in dollars, for 8 months.
   

Month- January February March April May June July August


Dollars- −30 ​ −15 ​ 55 40 ​ −20 ​ −45 ​ ​ −10 65

What is Timothy's average monthly savings account balance?

1. Divide -3/8 and -6/7
   
   
2. Jerry measured and timed the descent of a diving bell spider in a large fish tank. The spider reached a position 4 1/2 inches below the surface of the water after descending at a constant rate for 1 1/2 seconds. Jerry recorded this as −4 1/2 inches.
   

What is the position of the spider relative to the surface after 1 second?

1. Divide 5 1/4 and -2 1/2 answer it as a mixed number in simplest form
   
   
2. Miko’s restaurant bill was $16. She used the expression 1.18(16) to find the total cost including an 18% tip.
   
   

What expression is equivalent to the amount Miko paid?

A16 + 1.18

B1 + 1.18(16)

C(16 + 0.18)16

D16 + 0.18(16)

If you get 2 or less wrong then I will give you brainliest. You will get 25 points. Please answer in the next 10 minutes!!!