Answer:
Step-by-step explanation:First you divide 28 by 4 to see how many ice cream cones she sells in an hour then you multiply the answer (7) by 6 which gives you 42.
Answer:
6ab.
Step-by-step explanation:
3 x a x 2 x b
= 3 x 2 x a x b ( because multiplication is commutative, which basically means you can move the numbers and variables anywhere in the expression).
= 6ab ( we leave out the multiplication signs. They are understood.)
Answer:
1. -7
2. 212
3. -49
4.-1,991
5. 78
6. -16
7. 2
8. 100
9. 16
10. 16
11. 13
12. 75
13. |12| = 12
14.|12| = 12
15. |8|
16.| 10|
17.15
18. 1,400
Step-by-step explanation:
Answer:
10x
Step-by-step explanation:
<h3>Expression:</h3>
Length = x unit
Width = 4*x = 4x
Perimeter = 2*(length + width )
= 2*(x + 4x)
= 2 *5x
= 10x
