Suppose we write down the smallest positive 2-digit, 3-digit, and 4-digit multiples of 7. What is the sum of these three numbers?

The doghouse shown has a floor, but no windows. find the total surface area of the doghouse, including the door.

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

In the diagram of circle o, what is the measure of zabc?