In a coordinate plane, verticles at A(-1, 0) B(-1, 4) C(3, 4) and D(6, 0). Find the area of the figure ABCD. (i don't know how to find it so pls pls pls help and explain)

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?

What are the values of each variable in the diagram below?