Respond ASAP please I need this badly I will be giving brainlest thanks and all stars

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet