which lines are perpendicular to 7x-3y=18
choose all answers that are correct

a. 3x+7y=42
b. 3y=7x-15
c. 3x-7y=21
d. -7y=3x+1

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers