4(y-3)=3(y+6)
1) Distribute
4y-12=3y+18
2) Addition property of equality
4y=3y+30
3)Subtraction property of equality
y=30
Thats your answer!
Enjoy middle school while you still can!
Answer: 250:1
Step-by-step explanation:
Divide the measurement of appearance by the actual measurement.

The magnification scale is 250:1. The scale is used by a 250X magnifying lense.
Answer:
≈ 7.07
Step-by-step explanation:
Calculate the length using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (0, - 1) and (x₂, y₂ ) = (- 7, - 2)
d = 
= 
=
=
≈ 7.07
Answer:
21
Step-by-step explanation:
Assuming this is a right triangle, we can use Pythagorean Theorem to find the third side. We'll represent the missing side with the variable x.
x² + 20² = 29²
x² + 400 = 841
x² = 441
x = 21
Therefore, the length of the third side is 21.