Tim wrote 16 as negative 2 to the fourth power is he correct

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Which number completes the inequality? 2/3 < _ < 7/9

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.