Answer:
A yes
B yes
C No
D No
Step-by-step explanation:
If it is a function then the first number in the ordered pair is use only one time.
Answer:
I'm guessing it's C because it's the only one that looks right
Cosecθ=sq.rt of 65/8. hope it will help you
H(x)=5x+15+4x+20
if x=4, together it would be 5(4)+15+4(4)+20
h(x)=20+15+16+20=71
Divided by 2, they'd each get 35.5
If Frank worked alone, he'd get 5(4)+15= 35
He'd make more working together.