The function c(c) =2.5x+15 shows the cost, in dallars ,to make x necklaces. What is c(10)?

c(-10)

Step-by-step explanation:

move all terms to left

(C)(c)-(2.5c+15)=0

get rid of perentheses

c-2.5c-15=0

we add numbers together and all variables

-1.5c-15+0

we move all terms containing c to the left all other terms to the right

-1.5c=15

c=15/-1.5

c=-10

answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil