Answer:
t=40
Step-by-step explanation:
first, add 21 to -21=0
to keep it balanced add 21 to 19=40
so t=40
hope this helps
Use exponential law, we have
Answer:
q = 
Step-by-step explanation:
The point of intersection (3, 1 ) is the solution to both equations
Using
y = qx - 7 and substituting x = 3, y = 1
1 = 3q - 7 ( add 7 to both sides )
8 = 3q ( divide both sides by 3 )
= q
Step-by-step explanation:
fifth row=19+4=23
sixth row= 23+4=27