Find the value of angle "a" and angle "b"​

there are 4 sides to this figure (trapezoid). the left slanted side and the right most vertical side, combined with the top and bottom horizontal sides, will get us the perimeter.

left slanted side = 5 yards

right most vertical side = 4 yards (see note below)

bottom side = 9 yards

top side = 6 yards

add up the four sides mentioned: 5+4+9+6 = 9+15 = 24

note: the rectangle has opposite sides that are the same length. while the right most side isn't labeled, it is the same length as the left side of the rectangle, so both are 4 yards long.

another thing i should probably mention is that we do not add in the interior 4 yard side. the perimeter is only the outer or exterior sides we care about. think of it like we're trying to fence around some property lot and we don't want to subdivide the property up. finding the perimeter will us find the amount of fencing needed to surround the property.

answer:

cost: $14.349

markup: $15.649

step-by-step explanation:

1. rewrite the percent as decimal. divide it by 100, as following:

  109/100=1.09

3. now, knowing that baby blankets sell for $29.99 after a markup rate based on cost of 109%, you can write the following expresion:

where x is the cost.

  4. you must solve for x, then, you obtain:

5. the markup is:

answer:

a right triangle

step-by-step explanation: