Answer:
5
Step-by-step explanation:
x = 4
y = 7
z = 10
6x - y^2 + 3z
= 6 ( 4 ) - 7^2 + 3 ( 10 )
= 24 - 49 + 30
= 24 + 30 - 49
= 54 - 49
= 5
