That’s really cool but thanks for free pointss <333
We have to simplify this as a product of fractions. Notice that the 6 has a negative sign, therefore, the result will be negative. We have then:

therefore, the simplified result is -2
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.
Each of the numbers 10, 70 and 490 is separated from the next by a factor of 7. 10 times 7 is 70; 70 times 7 is 490; 7 times 490 is what? 7 times 7 times 490 is what?
I think the answer is 15x^4y^5z^2