2x + Here is a system of linear equations:
x+3y=7
| 6x - 1 y = 5
Which would be a more helpful for solving the system: *
1 point
adding the two equations
subtracting one equation from another
1 point
Explain your reasoning:*
Your answer

Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?