Help me please
Greatest Common Factor

Step-by-step explanation:

Let's first look at the coefficients: 10, -15, 20

The GCF of these numbers is 5 (all numbers are divisible by 5, nothing larger).

Next, let's look at the terms:

The GCF of these terms is (find the lowest exponent)

Finally, let's look at the terms:

The GCF of these terms is (find the lowest exponent)

This gives us a GCF of

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.