Lola Bowers is charged \( \$ 161 \) for four pairs of pants and three shirts. If the shirts cost \( \$ 11 \) each, how much did each pair of pants cost? Let \( p= \) the cost of each pair of pants and \( s= \) the cost of each shirt.

Which of the following led directly to the demise of the Virginia Company? an unusually harsh winter an attack by Opechancanough civil war in England an outbreak of the plague

Find the final value in each of (a) \( 25 \% \) increase from 200 (b) \( 15 \% \) increase from 75 (c) \( 50 \% \) decrease from 560 (d) \( -25 \% \) change from 1500

When a number is divided by 7 , the quotient is 205 and the remainder is 4 . What is the number?

Factor the trigonometric expression and simplify \( \sin ^{3} x-\cos ^{3} x \)

(a) In an ideal constant pressure cycle, the overall volume ratio of the cycle is \( 9: 1 \). The volume ratio of the adiabatic compression is \( 6: 1 \). The pressure, volume and temperat of the air at the beginning of the adiabatic compression are \( 150 \mathrm{kN} / \mathrm{m}^{2}, 0.095 \mathrm{~m}^{3} \) and \( 25^{\circ} \mathrm{C} \) respectively. Taking \( \gamma=1.4 \) and \( \mathrm{Cp}=1.005 \mathrm{~kJ} / \mathrm{kgK} \), determine the thermal efficiency of the cycle.