Agrower wants to have three orange trees for every five grapefruit trees. he has planted 75 orange trees and 50 grapefruit trees. to maintain his ratio, how many more grapefruit trees must he plant? use a chart to show your answer.

Solve: 3x+y=6 4x-2y=18 show all work !

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.