Hello,

The site admin access is not valid and I cannot check the current settings.

1. The price can be changed by Advanced typography in the Theme Settings > Typography > Advanced typography: https://gyazo.com/7a529650b35ad94760cf673a56d7ec79

2. You can set a different fonts for two parts of the content in the cart: https://gyazo.com/5b80c049129ae8c7a2ca4905eadb0d8c

Please add this code to the Theme Settings > Custom CSS > Global:

.widget_shopping_cart .cart-info span.wd-entities-title, .widget_shopping_cart .cart-info span.quantity {
    color:red;
}

and

body .cart-info span.quantity .woocommerce-Price-amount {
    color: blue !important;
    font-weight: 500 !important;
}
.widget_shopping_cart .cart-info span.quantity {
    color: green !important;
}

I could not reproduce the issue. Could you kindly provide the actions step by step? What device and what browser you are checking on?

Best Regards