What is 10* 3.8 exponent of 6 in scientific notation

Use the distributive law to multiply. 3(4x + 5y + 6)

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

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