How many different values of l are possible for an electron with principal quantum number n = 4? express your answer as an integer?

654,202 round to underlined place

A train is traveling at a constant speed. The table shows the distance the train travels at different times during the trip. How fast is the train traveling?___ mph Train's Speed Hours 3 5 7 9 Miles 495 825 1155 1485

An inexpensive toy normally sells for 20 cents each. At a special reduced price, a store sold all of its toys, one at a time, for a total of $3.91. How many of these toys were sold if the reduced price is a whole number of cents?

You are hiking and are trying to determine how far away the nearest cabin is, which happens to be due north from your current position. Your friend walks 200 yards due west from your position and takes a bearing on the cabin of N 30.7°E.

56:2352 what is it the answer

In 1980, wind turbines in Europe generated about 5 gigawatt-hours of energy. Over the next 15 years, the amount of energy increased about 59% (each year). How many gigawatt-hours were generated?

Po is trying to solve the following equation by completing the square: 49x^2+56x-64 = 0. He successfully rewrites the above equation in the following form: (ax + b) ^2 = c, where a, b, and c are integers and a > 0.

Tyler used 18 kilograms of potting soil to fill flower boxes. He had already used 23 kilograms of potting soil to fill the flower pots. How many kilograms of potting soil did Tyler use in all?

What is 4 5/6 as a decimal

Martin has $200 in a savings account. he is looking at 2 investment plans. under a, he will increase gis account balance by $40 each year. under B he will increase his account balance by 15% each year.