Janice is painting a portion of a gymnasium court if janice paints the shaded area then how many square feet will she paint

If square root x = -7, then x= -49 true or false

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot