4. Simplify this expression: 19 - (-8) - (-14) = ? O A.-3
O B. 41
O C.-7
O D. 25
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Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?