Evaluate the expression for the given values of the variables.
for a=2 and x=-1
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1 point
1
Question 2
2.
Evaluate the expression for the given values of the variables.
for x=3, y=-1, and z=\frac{1}{2}
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1 point
1
Question 3
3.
Simplify the expression. Then evaluate it.
for a=2 and b=-1
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1 point
1
Question 4
4.
Evaluate the expression for the given values of the variables.
for a=-2 and b=25
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1 point
1
Question 5
5.
A savings account increases as interest accumulates according to the formula P_y=1.04(P_{y-1}) , where P_y is the principal balance at the end of yyears and P_{y-1}is the principal balance after y-1 years. After 6 years, there is a principal balance of $1600.00. How much is the principal balance after 8 years?