Answer:
(a+b)(c+d)=a c+a d+b c+b d is the formula
Step-by-step explanation:
Answer:
54
Step-by-step explanation:
to evaluate substitute b = 18 into 3b
3b = 3 × 18 = 54
Answer:
60 miles is 96.6 kilometers
Step-by-step explanation:
Answer:
45%
Step-by-step explanation:
Those expressions are already in scientific notation.