One coin is randomly selected from a jar containing 70 nickels, 100 dimes, 80 quarters and 50 one-dollar coins. what is the probability of selecting a dime?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

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