Simplify by using the distributive property and then combining like terms for the expression 7(2x+3)

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

What is the ratio fraction form of 25: 9