-1 is the opposite reciprical (perpendicular)
Rounded to the nearest tenth, the square root of 149 is 12.2.
<span> The lower and upper bounds of the confidence intervals must be equally distanced from the mean
so it will be
</span><span>70.9 - 73.1
</span>hope it helps
The first one is c , no proportional , slope is 35 and y intercept 19.