What value must be substituted for n so that 2x-n/2x^2+x-6 can be reduced to 1/x+2 ?

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189