Alejandro simplified the expression 100 – [45 ÷ (15 – 10)] using the steps shown. 100 – [45 ÷ (15 – 10)] 100 – [3 – 10] 100 – [–7] 107 Which statement is true about Alejandro's work? He should have subtracted 7 instead of adding it. He should have subtracted 10 before dividing. He should have subtracted 45 before dividing. He did not make any errors.

answer: a

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

they used 313 gallons of paint