Which area formula or formulas show(s) a joint variation?
i. a= s²
ii. a= π r²
iii. a= l•w
select one.
a. iii only
b. ii and iii
c. ii only
d. i, ii, and iii

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Determine the standard form of the equation of the line that passes through (-2,0) and (8,-5)