Which graph shows a dilation of the triangle with a scale factor of 3?

original triangle picture 1

a: picture 2
b: picture 3
c picture 4
d: picture 5

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Answer pls man im trying to get out of summer school

Arectangular courtyard is 12 feet long and 8 feet wide. a tile is 2 feet long and 2 feet wide. how many tiles are needed to cover the courtyard?