I hope this helps you! it's relatively straightforward but if you need more explanations, don't hesitate to ask!
Answer: # 15 is x=-12 and #16 is x=24
Step-by-step explanation:
Here you have an equilateral triangle. Because of this you know that all angles are also the same as each other. We know that the angles in an equilateral triangle are 60°.
so let's set 7x + 4 = 60
Subtract 4 from both sides: 7x = 56
Divide both sides by 7: x = 8
Answer:
Step-by-step explanation:
Well, not specific. But after 7 hour the bus will be 210mi away
