Answer:
b
Step-by-step explanation:
3/4-3=43 Thsts the answer hopes it help
7 girls participated only in Karate.
21 + 8 = 29
29 + 7 = 36
36 + 6 = 43
Answer:

Step-by-step explanation:
zeroes are when you plug in that x value and get y=0
therefore if you set x = that number and solve for 0 you get a "function"
multiplying these together will yield the complete 3rd degree polynomial
x = 1
x-1=0
x=7
x-7=0
x=-4
x+4=0

If needed you could expand but I'm too lazy
If you do 27-12 (which is 15) you add 15 to 13 and 20