Please help me with this yawngyawn ill mark you brainlist and 5 star quickly

In the figure below, triangle rpq is similar to triangle rts. what is the distance between p and q? a. 24 b. 42 c.50 d. 54

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20