stephanie uses 4 meters of red yarn and 9 meters of purple yarn for a project. the red yarn costs $5 more per meter than the purple yarn. She pays a total of $72. What would be the combined cost of 1 meter of red yarn and 1 meter of purple yarn?

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.