Solve the proportion. X/8=4/5

Can someone help me with this ASAP please I’m being timed

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?