How many terms does the polynomial x^2+xy-y^2 have

Simplify the expression 10/11(22z) + (a+5) -1

What are the domain and range of the function f(x)=2^x+1

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min. if they did not stop driving, how many miles could kyle and elijah drove in a whole day? ? 1 day = 24 hours. plzzz write a proportion i will give you 100 points