Which statements are true about the expression 8 (a + 7)? Check all that apply.
To simplify, distribute a to 8 and to 7.
8(a) can be rewritten as 8a.
8 (a + 7) can be rewritten as 8 (a) + 8 (7).
8 (a + 7) can be rewritten as 8 (a) + (7).
An equivalent expression is 15a.
An equivalent expression is 8 a + 7
An equivalent expression is 8 a + 56

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°.

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Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)