15 red marbles
12 green marbles
15+12 = 27 marbles in total
T=3s/10+2x/5 hope this helped <3
Hope this helps!! I just distributed when needed and solved for the unknown variable
Answer:
14.38
Step-by-step explanation:
1. multiply the 5 packs of pencils times 0.79 each (5x0.79 = 3.95)
2. multiply the 8 packs of pens times 1.19 each (8x1.19=9.52)
3. add the total of pens and pencils together (3.95+9.52=13.44)
4. multiply 13.44 times 7% sales tax (13.44x.07=0.94)
5. add the total plus the sales tax (13.44+0.94=14.38
To do this, we have to multiply the 7 feet diameter by pi to get the circumference because the formula for circumference is

, or circumference = pi times diameter. 7 x 3.14 (pi rounded) = 21.98
Answer: 21.98 feet