I need help with this please. Evaluate 5a+ 4b2 when a = 7 and b = 6 ​

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift

Write an algebraic expression for the word expression the quotient of c and 8

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'