Step-by-step explanation:
x² + 2x - 63 = 0
(x+9)(x-7)=0
x=-9 x=7
8 1-and-a-half blocks would be 12 blocks, and so 12/17, because 12 blocks in 17 mins., so you divide 12 by 17 to get ---- blocks per minute, which is 12/17 as a fraction, or approx. 0.705882353 blocks per minute.
Hi yes I can:)
Its the first option. 3 1/2
2,400
20% of 3,000= 600
3,000 - 600= 2,400
It would be 41.5 divided by 5 because a pentagon has 5 sides
