Answer:
missing number is 5
Step-by-step explanation:
idunno
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.
Answer:
2 real solutions
Step-by-step explanation:
x^2+18x+c-25-c=0
x^2+18x-25
D=18^2 - 4 x 1 x (-25)
D=424
D> 0 --> 2 real solutions