The initial equation is:

Let's transform it for x:

... distract 5:

... divide both sides by 5:
I think it’s the second one sorry if I’m wrong ahhh
Answer:
5:7
Step-by-step explanation:
Let the radius of first hemisphere be 'r' units
Let the radius of second hemisphere be 'R' units
2 x \piπ x r^2 / 2 x \piπ x R^2 = 25 / 49
r^2 / R^2 = 25 / 49
r / R = 5 / 7
the ratio of radii is 5:7.
Answer:2.25
Step-by-step explanation:it just is
Use the pythagoras theorem to find the number of blocks between Shakillah's and Reyna's house
= sqrt (12^2+ 5^2) = aqrt 169 = 13 blocks
distanc,e from school to Shaquilla's house = 12 - 0 = 12 blocks
.. .. .. .. .. ... .. Reyna's house = 5 -0 = 5 blocks
So total number of blocks in entire trip = 5 + 12 + 13 = 30