Answer:
7x(3-5a)
Step-by-step explanation:
21-35a =
to find a minimum common multiply you have to rationalize the number with the same numer, and this number must be a whole, this will help you to write the expression easier, if you notice that 21 and 35 are familiar of 7, then you can find a common factor, to multiply your expression
Answer:
The answer is D
Step-by-step explanation:
You multiply by 2 19 x 2 = 38 38 x 2 = 76 76 x 2 = 152
then 152 x 2 = D 304
1.5x will be the very answer
Your answer would look like this
Answer:
r^2=(A/pi)
Step-by-step explanation:
if A=pi*r^2 then maybe dividing by pi to get r^2 alone says r^2=(A/pi) or to get rid of the exponent you may square root each side so r=(sqrt(A/pi))
