Solve each equation. Also, for each step, state the property of equality used. 1. − 11 = 29
2. 16 = + 20
3. 7 = 1 +
4. −9 = 153
5. 2 = −20
6. 12 = − 1
7. = −13
8. −30 = −18 +
9. + 15 = 32
10. −30 = − 15

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.