Group A I’m pretty confident with that answer
Answer:

Step-by-step explanation:
First, use distribution to simplify

Then, simplify further by combining like terms

Solve

Step-by-step explanation:
You have to take the decimals to whole number my multiplying it in tens, and then divided by the number of multiples you multiplied it by, also in tens.
After these, take. the square root of the resulting fraction
Answer:
Y= 4x-3
Step-by-step explanation:
The y-intercept is -3,
the slope is 4:
rise over run= 4/1 or 4
so 4x-3
I hope this helps!
Answer:
15
Step-by-step explanation:
Let x represent the number of algebra problems. Then the number of geometry problems was 27-x and the total working time was ...
2x +5(27 -x) = 90
-3x = 90 -135 . . . . subtract 135
x = -45/-3 = 15 . . . divide by -3
Rob had 15 algebra problems for homework.