Please help with this question.

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.

The seasonal output of a new experimental strain of pepper plants was carefully weighed. the mean weight per plant is 15.0 pounds, and the standard deviation of the normally distributed weights is 1.75 pounds. of the 200 plants in the experiment, how many produced peppers weighing between 13 and 16 pounds

What’s 12x + 6.25y greater than or equal to 1500