Answer:
2 ; 10
Step-by-step explanation:
a + B = 12
a - B = 8
a = 12 - B
(12 - B) - B = 8
a = 12 - B
12 - 2B = 8
B = 2
A = 10
Answer:
D
Step-by-step explanation:
Answer:
0.15
Step-by-step explanation:
50% of 620 is half of 620.
Writing 50% of 620 is 50%. (Or 310 if you wanted to know half of 620)
Round the numbers to 70 and 30, then multiply them together to get the product of 2100
