each week, Jennifer saves 1/5 of her allowance and spends some of the rest on lunches. this week, she had 2/15 of her allowance left after buying her lunch every day. what fraction of her allowance did she spend on lunches?

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Consider the input and output values for f(x) = 2x - 3 and g(x) = 2x + 7. what is a reasonable explanation for different rules with different input values producing the same sequence?