Answer:
1: -13
Step-by-step explanation:
First, simplify the equation to -2y+10=36
Subtract 10 from both sides
-2y=26
Divide negative 2 from both sides
y=-13
Answer:

Step-by-step explanation:
Write the number in exponential form with the base of 2:

Since the bases are the same, set the exponents equals.

Cancel equal terms on both sides of the equation:

Answer:
a 18.24
b 32ratio 48
c
d
Step-by-step explanation:
you have to do ur self itis very easy you can also search some parton Google ok bro
<span>Melvina's age is = x, Bettina's age is = 3x
the equation is
x + 20 = 3x - 20
subtract 3x from both sides
-(3x) + x +20 = 3x - 20 - (3x)
-2x + 20 = -20
subtract 20 from both sides
-2x + 20 - (20) = -20 - (20)
-2x = - 40
divide both sides by -2
(-2x)/-2 = (-40)/-2
x = 20
Melvinas age is 20 and Bettinas age is 60</span>
Answer:

Step-by-step explanation:
The given expression is 
We apply the distributive property to expand the parenthesis

Regroup similar terms to get:

Combine the similar terms to obtain:

The correct option is C.