Samantha sends her son, barry, to a preschool center on certain days. the cost of preschool is $45 per day along with a fixed monthly charge
of $70. last month, samantha paid a total of $880 to the preschool center. let d represent the number of days barry spent at the preschool
center last month.
which equation represents this situation, and how many days did barry attend preschool last month?
a
810 = 45d, 19 days
b. 880 = 70d-45; 21 days
c. 880 = 90d +45; 9 days
d. 880 - 45d + 70; 18 days

Im pretty sure its b

Step-by-step explanation:

the answer is: the length is 5/6 yards.

give me a or a 5 star rating if this is correct!

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)