Can some one me. a geometric sequence starts with a1 = 3, and the common ratio is −2. what is the sum of the first 6 terms of the series? i need asap

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Acompany manufactures large valves, packed in boxes. a shipment consists of 1500 valves packed in 75 boxes. each box has the outer dimensions 1.2 x 0.8 x 1.6 m and the inner dimensions 1.19 x 0.79 x 1.59 m. the boxes are loaded on a vehicle (truck + trailer). the available capacity in the vehicle combination is 140 m3. each valve has a volume of 0.06 m3. - calculate the load factor on the box level (%). - calculate the load factor on the vehicle level (%). - calculate the overall load factor (%).