Plz with these two question.
the ages of 10 workers at a factory are shown. what is the mean absolute deviation for the group (round to the nearest tenth)?
a) 10.3
b) 12.7
c) 40.4
d) 127.8
the scatter plot shows a regression line of advertising dollars spent and sales. if the company were to spend $350,000 on advertising, what would be the predicted sales?
a) $116 million
b) $120 million
c) $118 million
d) $122 million

If g(x) = x+1/ x-2 and h (x) =4 - x , what is the value of ( g*h) (-3)?

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle.what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle.what is the measure of angle a? enter your answer in the box.m∠a= 3.)quadrilateral abcd is inscribed in this circle.what is the measure of angle b? enter your answer in the box.m∠b= °4.)quadrilateral abcd is inscribed in this circle.what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle.what is the measure of angle c? enter your answer in the box.°