Answer:
<em>Sali's speed was 18.75 km/h.</em>
Step-by-step explanation:
Jane took 3.5 hours to cycle the 63 km.
As, 
, so the speed of Jane will be: 
Suppose, the speed of Sali is 
km/h
Sali caught up with Jane when they had both cycled 30 km.
So, <u>the time required for Jane to cycle 30 km</u> 
and <u>the time required for Sali to cycle 30 km</u> 
Given that, Sali started to cycle 4 minutes or 
after Jane started to cycle. So, the equation will be.......
Thus, the speed of Sali was 18.75 km/h.
Answer:
D im not sure just my opinion
Volume of the prism is given by:
Volume=length×width×height
but
V=<span>18x^3+5x^2-2x
V=x(18x^2+5x-2)
V=x(9x-2)(2x+1)
Hence the possible expression for the dimensions of the shipping box is x by (9x-2) by (2x+1)</span>
.The children
initially didn't expect to have fun cleaning the
attic, but then they discovered the treasure
map.
4 squared+ 12 squared= c squared
16+144=160
Square root 160
so your answer would be 12.6
