A rectangular sandbox is surrounded on all sides by a strip of grass that is 5 feet wide on all sides. The length of the sandbox is 2 feet more than the width, and the total area of the sandbox and the grass is 190 square feet. Find the dimensions of the sandbox. PLEASE HELP ASAP

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?