Answer:
13
Step-by-step explanation:
247/19=13
2x+4=3x+1 they've substituted y =2x+4 into the second eq.
Regular price is $120
And they are on sale for 35% off.
120 * 35/100 = $42
So they are $42 off.
Then;
Sale price is $120 - $42 = $78
Answer:
angle 4 and angle 8 are congruent