Carlos invested a sum of money at 7%.  He invested a second sum, $200 more than the first sum,  at 8%.  The annual income from the two investments is $346.  Find the amount of money he  invested at each rate.           

Is there an x intercept in the equation 60*1.15^x

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.

Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%