Answer:
yes
Step-by-step explanation:
y=-16r^2+63r+4
maximum value of y :
y'=0
-32r +63=0
r= 63/32
y = -16(63/32)²+63(63/32)+4
= -4 + 124 + 4 = 124 ft
124 > 68
the Arrow can pass over the tree
A child's dinner costs $4
7 + 7 = 14
22 - 14 = 8
8 / 2 = 4
(2n - 7) - 10
(2n - 7) represents "difference of 2 times a number and 7"
- 10 represents "10 less"
