Plz answer both of these, making this worth several points:
a rectangle has length 10 feet and width 6 feet. it is enlarged to a similar rectangle with length 18 feet. what is the new width?

if 200 vitamins cost $4.75, what should 500 vitamins cost?

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.