Ling invested some money at 5% intrest. Ling also invested $196 more than 3 times that amount at 11%. How much is 8nvested at each rate if Ling receives $1005.76

Mary spent a total of $323.14 for a party.she spent a total of $200.22 on food,plus an additional $30.73 for each hour of the party.how long was the party?

What is r i 4.5+10r=-6.5 with work pls

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?