How do I solve the following.

To eliminate y multiply

-10x-3y=3 by 100/3

Prove triangle DEF is similar to triangle DGE

Jernel has to figure out the area of her square garage. She knows that one side of the garage is equal to the length of her rabbit pen. The dimensions of the rectangular rabbit pen are 13 by 10. What is the area of the garage?

A smoothie shop has 40 stores and 55% of the stores are in california the rest of the stores are in nevada. how many are in nevada?

A freshly prepared sample of curium-243 undergoes 3312 disintegrations per second. after 6.00 yr, the activity of the sample declines to 2755 disintegrations per second. the of is

Find the greatest common factor of 24xz^2 and 8yz?

Ryan works mowing lawns and babysitting. He earns $8.20 an hour for mowing and $7.70 an hour for babysitting. How much will he earn for 3 hours of mowing and 7hours of babysitting?

Expand the expression and combine like terms: 2 (-14+r) - (-3r-5)

The sum of andre and brandons scores on a math quiz is 180. Andre score is 2 times as much as 30 less than brandons score. Find each students quiz score

1. If I get a loan of $30,000 and I promise to pay in 10 equal instalments of $3,000 each semester, how much interest in total do I have to pay if 10% each semester over the balance.

Which of the following conditions make a pair of triangles congruent? One angle and two sides are congruent. Two angles and one side are congruent. Two corresponding sides and one angle are congruent.