jason and markus are collecting rare coins. jason has 8 coins. markus has 3 more coins than jason. if they combine their coins, how many do they have altogether?

19 coins

11 coins

3 coins

24 coins

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in