Louise printed 40 standard photos and 12 wallet photos for a total of $6.96. Marcia printed 25 standard photos and 30 wallet photos
for a total of $6.15.
Which system of equations can be used to find s, the cost in
dollars of each standard photo, and w, the cost in dollars of each
wallet photo?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

Asalesperson has january sales of $20,000(1,$20,000) and april sales of $80,000 (4,$80,000). what is the rate of change?

Iready kara is sorting buttons by length for a craft project the line plot shows the length of each button if kara lines up all the 3/4 inch buttons,what would be the total length