We have that
<span>35 + 30s - 45t
case A)
</span>7⋅(5+30s−45t)---> 35+210s-315t-----> is not <span>equivalent
case B)
</span>5(7+6s−9t)----> 35+30s-45t------> is equivalent to 35 + 30s - 45t
case C)
(−35−30s+45t)×(−1)----> 35+30s-45t---> is equivalent to 35 + 30s - 45t
case D)
10×(3.5+3s−4.5)----> 35+30s-45----> is not equivalent
case E)
( 35/2 - 15s + 45/2t) ⋅ (-2)--->-35+30s-45t---> is not equivalent
the answer is
<span>B. 5(7+6s−9t)
C. (−35−30s+45t)×(−1)</span>
Answer:

Step-by-step explanation:
We want to evaluate

We have a power to evaluate.
The base is 3
The exponent is 4.
What this means it's to multiply the base by itself four times


In general, if you have aⁿ , you multiply 'a' by itself n-times.
I cant read it try repost it, but i thing its ab, a,4b,4
Answer:
14
Step-by-step explanation:
If you count the dots (excluding 3 because it says more than three hours) you get 14.
Answer: 39
Step-by-step explanation: x=13. so 5-2=3 x 13 = 39
espero que esto ayude :)