Answer: $30 charge for the helmet before tax
Step-by-step explanation:
Let P the pre-tax subtotal
Sales tax = P·5/100
Since we know the sales tax paid, we can substitute its value here:
P·5/100 = $1.50
P = $1.50·100/5 = $150/5 = $30 , charge for the helmet before tax
Answer:
Given the expression:
1.
we know:
then;
Therefore, the value of expression is -16 i.e negative.
2.
Therefore, the expression is 16 i.e Positive.
3.
50
one teacher per 17 students
D