elements x and j combine to form two binary compounds. the first compound contains 16.80 g of x with 3.50 g of j. in the second compound, 7.20 g of x combines with 4.40 g of j. what is the formula of the first compound, if the formula of the second compound is xj?

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?

What should you adjust to make your hard hat fit properly

What is a good tip to follow in the day you take the aspire test or psat