Danny deposits $100 for the first month with the amount increasing by 5% each month. What is the equation that represents this situation?
y = 100(1+0.05)
y = 100(1+0.05)x
b. y = 100+ 0.05x
d. y = 100x + 0.05
a.
c.

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

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 (%)