Question

Can someone help me with this please

Answer 1

for 7

Yes it is right cuz 16 is the double of 8 and even the price if doubled up so the price is right

for 8

Apply the formula

$2\sqrt{\frac{Area}{\pi } }$

$2\sqrt{\frac{154}{\pi } }$

$2\sqrt{49.02}$

$2(7)$

$14$

the diameter is 14

Hope this helps :)