Answer:
D
Step-by-step explanation:
8x-5x<21-6
x<15÷3
x<5
Answer:
20 boxes
Step-by-step explanation:
10 boxes are 137.5kg
=> the number of boxes can add :
(450-137.5)/15.5 = 20 (boxes)
12.99+2.50=15.49
20.00-15.49= 14.51
X=CD
Y=Birthday card
Z=total
L=money left
X+Y=Z
20-z=L
(I hope this helps at least a little?)
3.
a) (3x - 7) + 5
b) 3(x + 5) - 7
c) - 11
d) 35
4.
f^-1 = (1/5)x + 7
f^-27 = -142
