Evaluate the expression using x = –1 and y=3.

1. Substitute the values for the variables.
we plug in -1 for x and 3 for y


2. Identify grouping symbols, beginning with the innermost symbols.

We take exponent and then we multiply
3. Determine and apply the rules of exponents to simplify

(-1)^4 = -1 * -1 * -1 * -1 = 1
(3)^3 = 3*3*3= 27

4. Evaluate.

162
The value of the expression is 162
Answer: 27
Step-by-step explanation:
PEMDAS
M (Multiply)
3•16= 48
S (Subtract)
75-48= 27
Answer:
B
Step-by-step explanation:
y= -24/x²+8
y-<em>i</em><em>n</em><em>t</em><em> </em><em>(</em><em> </em><em>0</em><em>,</em><em>-</em><em>3</em>
Answer:
168
Step-by-step explanation:
20% of 140 is 28
140 + 28 = 168