Ann wrote a three digit number. the digit in the hundreds place 4 less than the digit in the once place the digits is 16 what is the three digit numbers

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

What is the value of x in the equation7x+2y=48 when y=3

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