Nathan bought a pair of boots for $79.95 and 2 shirts for $19.99 each. the sales tax is 7.5%. how much did nathan pay for all the items, including tax?

a) $99.94
b) $119.93
c) $128.92
d) $147.95

and show !

Aline that intersects one of two parallel lines intersects the other also always sometimes never

Write the component forms of vectors u and v, shown in the graph, and find v − 2u. u= (< -3, -2> , < -3, -1> , < -2, -2> , < -2, -1> ) v= (< -5, 1> , -4, 0> , < 0, -4> , < 1, -5> ) v-2u= (< 5, 3> , < 0, 4> , < 4, 0> , < 5, -3>

Ireally don't understand this, i'm really an idiot but i want to know how to figure this out. !