1. In some flowers, the ovary is hidden within the base of the flower, while pollen is held up in the air, often near a source of nectar. How is this design helpfulto
the plant?
A. It keeps the pollen dry by exposing it to air while keeping the ovary moist.
B. It makes it possible for seeds to develop both in the ovary and pollen grains.
C. It encourages animals to carry pollen for cross-fertilization while leaving the
ovary alone.
D. It allows the plant to self-fertilize easily since the pollen can drop into the
ovary.

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.

How can constraints be used to model a real-world situation?