0.8p - 50 < = 150
0.8p < = 150 + 50
0.8p < = 200
p < = 200/0.8
p < = 250
the reason I set it up this way is because when it is 20% off, u r actually paying 80% of the original price (p)....80% of the original price is written as 0.8p...then u subtract ur 50 dollar discount coupon...- 50.....and if all she can spend is 150....it would be less then or equal to 150. So the most she can spend on the phone is 250
( 2x +5)^2 =4
2x+5=2
2x=-3
X=-3/2
Answer:
62.8
Step-by-step explanation:
20 x П =
20 x 3.14 = 62.8
