If x+y = 12 and x−y = 8, what is the value of x2+y2? (A) 20 (B) 24 (C) 100 (D) 104 (E) 208

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?