Answer:
a= 15
Step-by-step explanation:
Given
3a + b = 54 ← substitute b = 9
3a + 9 = 54 ( subtract 9 from both sides )
3a = 45 ( divide both sides by 3 )
a = 15
3(15)+9=54
A is equal to 15
Since x is an exponent, y = 15 × 8ˣ represents an exponential function.
a
d
