Randall is saving money to buy a bicycle. he has $37.80 in his savings account and saves 20% of his paper route earnings each week. after 10 weeks, he has $87.80 in his savings account. how much does randall earn each week from his paper route?
$25.00
$17.56
$7.56
$5.00

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Which strategy is used by public health to reduce the incidence of food poisoning?