3. If x = 6, y = -2, and z = 3, what is the value of the following expression?
(x2 + xy)/z2
a. 2
b. 19
C. 2
d. 6

Which of the following is correct interpretation of the expression -4+13

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left