Answer:
40%
Step-by-step explanation:
Move the period over twice then place the percentage sign where you moved the period to
The Answers would be A for the first one and D for the second
<span>2/3 of the rocks are metamorphic
</span><span>3/4 of the remainder are igneous rocks
</span><span>3 rocks left over are sedimentary
the rocks that deSean has are
2/3+3/4+3= 4x2+3x3/3x4 + 3 = 17+36 /12 = 20
</span><span>DeSean had 20 rocks </span>
7.4z-5(-1.6z+2.4)
7.4z+8z-12
15.4z-12
Hope this helps :)
6:5. or 6/5 which ever way you choose
