Answer:
51.6
Step-by-step explanation:
10.8 - -6.4 is 17.2
17.2 x 3 is 51.6
30
PEMDAS
Multiply -6.4 × 3 = -19.2
New equation: 10.8 - (-19.2)
the subtraction symbols cancel each other to addition
new equation: 10.8 + 19.2 = 30
the picture is from M A T H W A Y for reassurance
