Question 1 is 87 because two smaller angles added together equals the bigger angle.
question 2 is x=8. the equation is 3x-4+6x+2=70 and then solve for x.
question 3 is x=7. the equation is 6x-2+15=7x+6 and then solve for x.
question 4 is 21 because an angle bisector splits and angle into two equivalent angles.
question 5 is x=7. the equation would be 62=2(4x+3) and then solve for x.
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I think it’s c. a sugar crystal
Answer:Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion.
Explanation: