On the first day of spring, an entire field of flowering trees blossoms. The population of locusts consuming
these flowers rapidly increases as the trees blossom.
The relationship between the clapsed time, t, in days, since the beginning of spring, and the total number
of locusts, Nday (t), is modeled by the following function:
Nday(t) = 300 - (1.2)

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

the answer is 6

hope this !

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