Solve the system by substitution.

y = 2x
3x + 2y = 21

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.