Help pleaseee i suck at maths this suckss ​

What is the equation of the parabola with focus (-1,-1) and directrix y=1?

If the regular price was $115, how much did jeanine pay for the hiking boots? jeanine bought a new pair of hiking boots on sale for 25% off the regular price. enter the correct answer. ooo done clestall the following formula describes this scenario: đoo s = r. 0.25 r = regular price s = sale price

The sales tax for an item was $8.40 and it cost $420 before tax. find the sales tax rate. write your answer as a percentage.