How many numbers between 11 and 99 have 0 as their ones digit? ​

Yesterday, peter and winston had a total of 8800 dollars. today, after receiving 1 dollars from his grandmother, peter has six times as much money as winston. how much money had each of them have yesterday?

2. find the degree of each polynomial. 100% - 8​

The intensity of illumination (i) of light varies inversely as the square root of the distance (d) from the light. at a distance of 20m, a light has an intensity of 100 candela. find the intensity of the light at a distance of 35m.​