a poll of 200 doctors across the nation found that 112 were assistee in their office by registered nurses, 83 were assisted by licensed practical nurses, and 21 were assisted by both. How many were assisted by at least one type of nurse

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.