Answer:
7
Step-by-step explanation:
To solve this, we have to work backwards. If you divide something by 9, and it equals 5, to figure out the number, we need to multiply by 9. 5*9= 45. If four was taken away, we have to add it to 45, which is 49. If a number *7 is 49, then we have to divide by 7 to get the answer. 49/7=7
26*5 is 130
He'll have ten left over if each student in year 11 has one :) Hope this helps!
In order of missing boxes, 15 and 76
12(x^2+7)2−8(x^2+7)(2x−1)−15(2x−1)^2
Distribute:
=12x^4+168x^2+588+−16x^3+8x^2+−112x+56+−60x^2+60x+−15
Combine Like Terms:
=12x^4+168x^2+588+−16x^3+8x^2+−112x+56+−60x^2+60x+−15
=(12x^4)+(−16x^3)+(168x^2+8x^2+−60x^2)+(−112x+60x)+(588+56+−15)
=12x^4+−16x^3+116x^2+−52x+629
