Select the real-world problem that could be solved using a proportion. A Sheila has 3 pens and 7 pencils. How many more pens does she need to make the number of pens and pencils she has equivalent?

B Sheila has 2 dogs and adopts 2 more. How many dogs does she have in total?

C Sheila must pay $90 for a phone and then $30 each month for service. How much will she have paid after 7 months?

D Sheila travels 90 miles in 3 hours. At this rate, how far will she travel in 7 hours?

c

Step-by-step explanation:

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this

whaere is the picture

step-by-step explanation: