What is the least common multiple of 9 and 15?

45

Step-by-step explanation:

Find prime factors

9 = 3 x 3

15 = 3 x 5

3 x 3 x 5 = 45

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.