Which equation has exactly one solution. a 7x=7, b 7x=7x, c x+1=x+1, d x+1=x+2

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?

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