A woman drives an SUV that gets 15 mi/gal (mpg). Her husband drives a hybrid that gets 50 mpg. Every week, they travel the same number of miles. They want to improve their combined mpg. They have two options on how they can improve it.

cosine

step-by-step explanation:

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation:

answer: its the third option.

step-by-step explanation:

i just took the test.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.