Answer:
6a + 13
Step-by-step explanation:
Given
2a + 4(a + 5) - 7 ← distribute parenthesis
= 2a + 4a + 20 - 7 ← collect like terms
= 6a + 13
Answer:
x=-4
Step-by-step explanation:
2, (double) 4, (double) 8 (double) 16, So 16 in week 4
2+4+8+16 = 30
Answer:
6 is in ten place and its place value is 60, 3 is in ones place and its place value is 3.
Since a machine make a box per 0.3 seconds, 1 hour would be 3600. 3600 divided by 0.3 is 12000. And that is the answer.
