Algebra 2 help pls

question 7

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Find the unit rate. enter your answer as a mixed number. a fertilizer covers 2/3 square foot in 1/2 hour.

Given: δabc, m∠1=m∠2, d∈ ac bd = dc m∠bdc = 100º find: m∠a m∠b, m∠c