Answer each question below, showing ALL work. Solve each of the proportions below using the cross-product property.

1. x3=69

2. 47=y14

3. d6=39

4. 58=a16

5. m8=166

6. 43=8c

7. 4d=510

8. 45=25g

9. 87=2x

10. 12t=63

11. 15=21y

12. 43=8c

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

Find the interior angle of a regular polygon which has 6 sides