Respuesta :
- (r + c) the sum of r and c
- (x - 9) nine less than a number
- (z/7) divide a number, z, by 7
- (6+n) 6 increased by a number, n
- (2x) twice a number, x
- (p0.15) the cost of p photocopies is each one costs $0.15
- (x - 9) nine less than a number
- (z/7) divide a number, z, by 7
- (6+n) 6 increased by a number, n
- (2x) twice a number, x
- (p0.15) the cost of p photocopies is each one costs $0.15