Answer:
43
Step-by-step explanation:
the equation would be:
age = 4x -5 (x being Sophie's age)
then you plug in the 12, and PEMDAS requires that you do the multiplication first, so it would become:
age = 48 - 5
then, you subtract to get:
age = 43
28 I think
12-5=7
7x4=28
B
Answer: 3/5
Step-by-step explanation: 3 pizzas for 5 people
49
25b² + 70b + ....
( 5b + 7)² = 5×5b² + 2×5×7b + 7×7 = 25b² + 70b + 49