Ben has type 180 word in can type 30 words per minute. millie has type 60 words and can type 50 word per minute. how many minutes will it take millie to catch up with ben?

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n