Answer:
Step-by-step explanation:
can you show the whole picture please
its B -15 - 10 = -25
a) w ⇒ × 5 ⇒ -3 ⇒ z
b) x ⇒ +2 ⇒ ×7 ⇒ y
y= x+2×7= x + 14
third one
