It takes 0.84 meters (m) of ribbon tape to wrap one gift. When Soeun prepared gifts for 10 of her friends, there were 50 centimeters (cm) of ribbon tape left. How many meters (m) was the basic tape that Soeun had at first?
0.84 10 [OP_MUL] 50 100 [OP_DIV] [OP_ADD]
var_a = 0.84
var_b = 10
var_c = var_a * var_b
var_d = 50
var_e = 100
var_f = var_d / var_e
var_g = var_c + var_f
print('{:.2f}'.format(round(var_g+1e-10,2)))