Donald plays with his wood cubes and decides to make pyramids.
he carries on with his pyramids and labels following the same pattern.

after making p4 donald realises that he only has 12 wood cubes left. how many more cubes will he need to make p5?

bull

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation:

answer is  

a.

7 in. x 11 in.

hope you get this right.