Answer:

Step-by-step explanation:
To solve this question, we will first expand the expression using the distributive rule: 
Therefore:

Simplify:

Add up like terms:

Answer:
Step-by-step explanation:
o=-8
-56=7*(-8)=-56
Answer:
3 girls for every 4 boys
Step-by-step explanation:
Number of girls = 12
Number of boys = 28 - 12 = 16
The ratio of girls / boys = 12/16 = 3/4
Answer is on the attachment. Brainlist pls.
Step-by-step explanation:
Answer:
x=11
Step-by-step explanation:
Since this is a 90º angle, 46º+(4x)º has to equal 90º, and you can make and solve an equation for this:
46+4x=90
4x=44
x=11
Check:
46+4x=90
46+4(11)=90
46+44=90
90=90