We have that
<span>a = <2, 4>-------> 2i+4j
b = <2, 5>------> 2i+5j
a.b-------> 2*2+4*5--------> 24
the answer is 24</span>
Answer:
C
Step-by-step explanation:




The following were used:Convenience,Systematic and Voluntary.
80x20=1600 costumes
12x90=1080 masks
1600-1080=520
they ordered 520 more costumes than masks. hope this helps!
Answer:

Step-by-step explanation:
We are given the recursive formula:

This is the recursive formula for an arithmetic sequence.
The explicit formula for an arithmetic sequence is given by:

Where d=3 is the common difference.
We plug in this values to get:

We now expand and simplify to get:

We simplify to obtain:
