To find markup price, multiply the original number (455) by 1 + the decimal equivilent of the percent increase (.34)
so
455*1.34= $609.70
when you have a linear combination for example 3x + 2y equals negative 4 you adieu like terms and then multiply
Answer:

Step-by-step explanation:

1.609/5280 = 3.2/x....1.609 km to 5380 ft = 3.2 km to x ft
cross multiply because this is a proportion
(1.609)(x) = (5280)(3.2)
1.609x = 16896
x = 16896/1.609
x = 10,500 ft <===
Answer: y intercept is 4 and the slope is 4/5
Step-by-step explanation: