Please help me with my question ​

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

Express the following number in scientific notation. 0.026890 =

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li