Answer:
the answer is
Step-by-step explanation:
There are more students in biology than students in geometry.
Answer: z + 17
Step-by-step explanation:
1) DISTRIBUTE:
11 + 2z + 6 - z
2) COMBINE LIKE TERMS
z + 17
Today: x=19
y=67+19=86
9 years ago: x=19-9=10
y=86-9=77
The total age 9 years ago: x+y=10+77=87
(0.75 * 3.5a) + (0.75 * -6b) = 2.63a -4.5b
