Answer:
A) 
B) T = -5 °C
Step-by-step explanation:
A) Let T be the change in temperature of the week. T is determined as the total temperature change (-20°C) divided by the number of weeks that have passed (4 weeks). The expression is:

B) In order to simplify the expression, simply perform the division.

This means that the temperature has dropped by 5 degrees each week.
Hi im Aleida and go to calculatorsoup on Safari or google and put gcf calculatorsoup hope this helps
Answer:
D. All those resources can be found in Africa
x=
34
/3 thats what I got 34/3=11.333333
Answer: Insufficient Information
The probability of selecting a red ball, a blue ball or a white ball is unknown.
Step-by-step explanation:
The probability of selecting a red ball, a blue ball or a white ball is unknown.
There could be 13 red balls, 1 blue ball and 11 white balls in the bag. There could be 3 red balls, 2 blue balls and 20 white balls in the bag. It is impossible to say with the information given have even numbers on them. The same thing applies to the number of balls with numbers or even numbers on them. The question does not specify how many white balls have each number on them.