Answer:


Step-by-step explanation:
Given

Required
Express as an exponential notation

Apply the following law of indices

This gives:


<em>The second complete is incomplete; However, I'll assume it is: 35 times 35</em>

Using the same law applied in (1) above:


Answer:
6=r
r*4-r
6*4=24
24-6=18
Step-by-step explanation:
im srry if its wrong
Answer:
d=-2 c=-3
Step-by-step explanation:
3c-8d=7
4(c+2d=-7)
3c-8d=7
4c+8d=-28
4c+3c-8d+8d=7-28
7c=-21
c=-3
c+2d=-7
-3+2d=-7
2d=-4
d=-2
Answer:
4
Step-by-step explanation:
t is replaced by 4 and t = hours