Solve for n.
121
Y
6
Z
F
2.5
7.5
H
X
m2
15
G

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 (%)

Can some one explain this i got sent this. is this a threat i’m scared

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1