How many integers from 1 through 100 are multiples of 4 and multiples of 7?

In the proof of the triangle angle sum theorem, you must draw an auxiliary line. which construction must you use to draw this line?

In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?