If 99 people had a mean income of 18,500, how much is the mean income increased by the addition of a single income of $210,000?

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?