I think number #29 is A but may be B and number #30 is C
Use the FOIL method (first, outside, inside, last) to multiply:
2x^2-8x+3x-12
This can be simplified even more into:
2x^2-5x-12.
Hope this helped!
Zach is 3 yrs older then twice his sister (m)
zack is : 2m + 3
D. y, because Triangle JHK is similar to triangle LMK
Mental math and associative property of addition
i look at 173 and 427 and see that
73+27=100
i add now the 100(from 173)+400(from 427)+100(see above)=600
easy
600+301=901
