Element X decays radioactively with a half life of 6 minutes. If there are 970 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 139 grams?

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?