the first part isn't 90, it's 180.
the whole circle is 360, half of 360 is 180
an acute angle is any angle less than 90 degrees.
Answer:
144
Step-by-step explanation:
36 ÷ 1/4
We will use copy dot flip
36 * 4
144
The answer is 
First you must use distributive property to simplify.

Then, you must subtract 18 on both sides

Next, add 2 on both sides

Then, subtract 8x on both sides

Finally, Divide both sides by -2. Don't forget to switch the equality sign because the variable was changed to a positive using division.

The ‘e’ represent how many zeros there are .....
0.00000146
Let the un know number be p
p + 1½ = 3/8
p + 3/2 = 3/8
p= 3/8 – 3/2
p= –9/8✅