I need this asap! will give a thanks and brainliest to whoever answers !!

Asequence is defined recursively using the formula f(n + 1) =f(n) - 5. which sequence could be

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?