Aline passes through the point
(-9,7)
and has a slope of
−2/3
.
write an equation in point-slope form for this line.

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

If eh = hg and hg=16, find the diameter of k

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?