(15 points) PLEASE HELP ME ANSWER THESE QUESTIONS)

How do i put 3(x+7) in distributive property

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.