Answer:
24.75
Step-by-step explanation:
keychain=$6.75
t.shirt=X
according to question
X+6.75=31.50
X=24.75
Answer:
(a)
Step-by-step explanation:
Given
4x - 1 = x ( subtract x from both sides )
3x - 1 = 0 ( add 1 to both sides )
3x = 1 ( multiply both sides by 10 )
30x = 10 → (a)