The length of a rectangle is 7 m more than double the width, and the area of the rectangle is 99 m2. find the dimensions of the rectangle.

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?