PLEASE HELP ME its due today Twelve and three tenths more than five and thirteen thousandths of a number d is equal to fifteen and three hundred two thousandths. What is the value of d?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field