The answer a are
1 C
2 A
3 whatever letter has the the answer 5x10^10
Answer:

Step-by-step explanation:

-7+-3= -10 6+9=15
-10/2=-5 15/2=7.5

Answer:
No, Richard is incorrect, the current temperature is 40 degrees.
Step-by-step explanation:
4x-40=3x
4x-3x=40
x=40
Answer:

Step-by-step explanation:
Given


Required
Compare both ratios


Multiply ratio 2 by 4


This gives:


Write both ratios as fractions


Get decimal equivalent:


Comparing both, we have that


Conclusively;

Answer:
While factoring may not always be successful, the Quadratic Formula can always find the solution. The Quadratic Formula uses the "a", "b", and "c" from "ax2 + bx + c", where "a", "b", and "c" are just numbers; they are the "numerical coefficients" of the quadratic equation they've given you to solve.
source from: https://www.purplemath.com/modules/quadform.htm
your welcome!