Answer:
c.23
Step-by-step explanation:
easy keep sendin em
The summation of negative 5 n minus 1, from n equals 3 to 12 can be expressed as
n = 3/12
substitute the value of n to the equatio
-5n – 1
-5( 3/12 ) -1
-9/4
6.75 x 21 = 141.75
141.75 x $2 = $283.50
so
what
x=5,y=-2
